He was bestowed with the honour of introducing Rihanna at her first annual Diamond Ball charity gala.

So instead of plying her with compliments, Brad Pitt made his speech really memorable by poking fun of the singer with an awkward 'intervention.'

The 50-year-old rattled off a series of tongue-in-cheek jabs that took RiRi to task for her 'disappointing' resume in hopes of helping 'this young lady find direction and purpose.'

Having a laugh: While at the Diamond Ball on Thursday, Brad Pitt introduced Rihanna with an awkward speech that jokingly mocked her accomplishments

Brad started out the introduction by flashing a childhood photo of Rihanna in Barbados and then began mocking the pop diva's rise in the music business.

'I've often asked the very questions you yourself are asking right now—what the f*** went wrong?,' the Fury star said.

'It's not a pretty story. Like so many others, Rihanna landed on the unforgiving streets of New York at the young age of 16, and soon fell in with a bad crowd, a bad crowd led by the dubious nefarious character known as the Jay Z

'For those of you not in the know, the Jay Z was an evil impresario known for churning out hit records, and ripping insane lyrics and fresh beats. '

She was in on it: The talented singer took the tongue-in-cheek jabs all in stride and came out to perform a medley of her hits dressed in a gorgeous navy Zac Posen gown and sparkling diamond necklace

Family affair: The Pour It Up singer's proud parents turned up to lend their support

The handsome Oscar winner continued his faux disdain by listing off a laundry list of her stellar accomplishments but with a sarcastic tone.

'Since turning the ripe age of 26, Rihanna sadly has had only 13 number one singles, only 54 million albums sold, only seven Grammys, 11 Billboard Awards,' he said.

Then taking aim at her various endeavors, Brad continued: 'Her resume's even more disappointing: executive producer, fashion designer, actress, entrepreneur, philanthropist, and uh, something else… and uh, she sometimes sings.'

He then pleaded with the crowd to help intervene in order to get her back on the right track.

Philanthropy: The gala was in support of The Clara Lionel Foundation, a philanthropic organization, which was founded in 2012 by the singer in honor of her grandparents, Clara and Lionel Braithwaite 

'I ask that we stand together by her side and show her our support and our love and say to her the hard words, "Rihanna, put down that sandwich, get off your ass, and do something. Goddamn it, just do something with your life.'"

Rihanna took the joke all in stride and came out to perform a medley of her hits dressed in a gorgeous navy Zac Posen gown and sparkling diamond necklace.

The gala was in support of The Clara Lionel Foundation, a philanthropic organization, which was founded in 2012 by the singer in honor of her grandparents, Clara and Lionel Braithwaite.

According to the foundation, its mission is to 'promote initiatives of health, education, arts and culture on a global scale'.

They're two of the world's most photographed women, and never fail to raise an eyebrow or two when it comes to their penchant for racy attire. 

And Rihanna and Kim Kardashian came together for a good cause as they attended the singer's first-ever Annual Diamond Ball at The Vineyard in Beverly Hills on Thursday night. 

The 26-year-old pop princess positively towered over the diminutive reality star as they enjoyed a good chat as the charity event, held in honour of the Clara Lionel Foundation, before working their magic in front of the camera.   

The perfect pair: Rihanna towered over tiny Kim Kardashian as they posed up a storm at the Inaugural Diamond Ball at The Vineyard in Los Angeles on Thursday night 

Terrific twosome: The 34-year-old reality star and the 26-year-old singer seemed to be having an absolute ball as they worked their magic in front of the camera at the charity event

Never far away: Kim's 'momager', Kris Jenner, also got in on the act, treating hostess with the mostess Rihanna to a huge hug inside the venue 

The girls opted for rather different outfits for the occasion, with the Rude Boy hitmaker ditching her usual racy and revealing attire in favour of something a little more elegant.

Displaying her toned curves in all their glory, the Bajan beauty positively smouldered as she hit the red carpet in a breathtaking Zac Posen Fall 2014 Rose Stretch Duchesse Off-The-Shoulder Gown.

Although this was a pleasingly graceful and new look for her, Rihanna still managed to show off some cleavage highlighted by a glittering red stone and diamond pendant necklace.

Her tattooed wrist was adorned with a purple bracelet while dark red lipstick lent a dramatic effect to her features.

Rihanna raised the bar by wearing her hair slicked back into a long ponytail.

Firm friends: The girls seemed to be complimenting each other on their equally stunning outfits as they enjoyed their glamorous night out

Glam squad: Kris, Rihanna and Kim posed with musician Big Sean as they partied the night away 

Night to remember: Rihanna donned an elegantly trailing rose satin gown to attend her first ever Diamond Ball at The Vineyard in Beverly Hills on Thursday

Professional pout: Kim struck a sultry pose before the event

Graceful for a change: The 26-year-old singer was unusually understated and played up her classy side at this event to benefit her very own The Clare Lionel Foundation

She's got sparkle: Rihanna dressed up her ensemble with a dazzling diamond and red stone pendant necklace

When one outfit simply isn't enough: Rihanna later changed into an incredible Zac Posen Resort 2015 Midnight Blue Duchesse and Taffeta Strapless Ball Gown

The ultimate pop princess: Rihanna's turn on the stage would have no doubt delighted the star-studded room of attendees at the inaugural event 

Gothic glamour: Rihanna's second outfit of the evening proved equally dramatic

We are family: The entertainer was joined at the charity bash by her grandfather Lionel Brathwaite and her mom Monica Brathwaite

She's surrounded: The star got a boost having so many loved ones there with her

Fancy seeing you here: Rihanna warmly greeted Fast & Furious star Tyrese

Ray J 'frantically called 911' on Wednesday after his girlfriend Princess Love threatened to kill herself. 

According to TMZ, the budding fashion designer made the threat a day after Ray J broke off their relationship. 

'She was incessantly texting him after he left for work today, and when she didn't hear what she wanted from him she threatened suicide,' the website reports.

The ex-boyfriend of Kim Kardashian apparently took her threat seriously as he 'knew there was a gun in the house.'

Ray J apparently informed the 911 dispatcher that his girlfriend's threat came days after his friend Earl Hayes seemingly committed a murder-suicide, thus putting him on 'high alert.' 

Police immediately paid a visit to Princess's home but she was not there.

However, Ray J has since informed the website that he has spoken to his former girlfriend and she has reassured him that 'she will not go through with her threat.' 

Ray made no official comment on the matter, but posted a snapshot of he and his entourage praying before filming commenced on his new reality show on Wednesday.

'Morning prayer with my whole team! #LMNO and #WeTV -stay tuned- it's a lot different from #LHHH #PositiveLove,' he wrote. 

Ray - real name William Ray Norwood Jr  - and his Love & Hop Hop Hollywood star girlfriend have had something of a fractious relationship of late. 

After splitting at the beginning of October, they fought over custody of over their tiny Maltese pooch Boogotti but appear to have got back together.  

Ray, of course, is best known for his relationship with Kim Kardashian during which they filmed their notorious infamous sex tape which was leaked in 2007. 

Infamous: Ray J, pictured with ex-girlfriend Kim Kardashian in 2006 

A host of famous female faces took to the red carpet on Wednesday for The Hollywood Reporter's Power 100 Women In Entertainment breakfast.

And Khloe Kardashian, who recently split from on-off boyfriend French Montana, showed her ex what he was missing as she made a curvaceous appearance at the event which took place at Milk Studios in Los Angeles.

The newly blonde 30-year-old reality star showed a flash of her midriff in a soft grey cropped jumper and figure-hugging powder pink pencil skirt. 

She donned transparent stiletto pumps with rose gold toe caps and accessorised with a metallic quilted clutch bag.

Khloe's highlighted brown tresses were styled in a centre parting and with layers that framed her face in feminine flicks.

Accompanying the youngest Kardashian star was mother Kris Jenner, 59, who sported a preppy black dress with white peter pan collar and sleeves over opaque tights.

The high-profile event attracted some of the most influential women in entertainment including actress Patricia Arquette, Grey's Anatomy producer Shonda Rhimes and Melissa Rivers. 

Shonda, 44, sits at number 14 on the power list for her screenwriting and directing credits as well as producing ABC's Scandal and How To Get Away With Murder.

The mother-of-two opted for a simple black dress and matching bag for the occasion and sported glamourous curls in her shoulder length locks.  

Mother-daughter duo: Khloe was accompanied by mother Kris Jenner, 59 who wore a preppy black dress with white collar and sleeves

See for yourself BELOW.

Lady Gaga is known for her love of outlandish fashion and her outfits never fail to grab headlines.

But the eccentric fashionista went one step further this week with a staggering 16 outfit changes.

The 28-year-old changed up to five times each day as she promoted her new album with Tony Bennett.

But how many clothes can one woman need?

With an album with Tony Bennett and H&M collaboration to promote, the queen of pop has been keen to turn heads at every opportunity.

She put her fashion phonebook to good use yesterday as she stepped out in a number of outfits throughout the day while in New York.

At one point, the limelight-seeking singer, who is dating actor Taylor Kinney, showed off her curves in a plunging off the shoulder red gown adorned with sequins.

It came after an earlier outing in a peach vest and black skirt. Prior to that, she was pictured in a blue ribbed retro jumpsuit, and then a fur trimmed coat.

The singer teamed her ensemble with retro-style sunglasses with her hair in a high bun and a thick fringe which was later slicked back when she pulled on her evening dresses.

The day before, the pop star stepped out in not one but four different outfits for TV appearances to promote her new album of jazz classics, before changing for a fifth time to perform on stage with Bennett.

Her outfits got more eye-catching by the minute, as she stepped out in a blue suede coat, a plunging red leather jumpsuit, a tight white dress and a taupe suit.

On stage at the Rockefeller Centre she transformed into an ice princess with a white low cut gown and furry snow coloured hat.

She also showed off her collection of accessories throughout the day wearing a selection of different hats, sunglasses and a black handbag.

She has said she’s been influenced by Madonna, Grace Jones, Cyndi Lauper and David Bowie.

Now she can add Jessica Rabbit to that list.

Lady Gaga appeared to be channeling the sexpot cartoon character from Who Framed Roger Rabbit? on Thursday in New York City during a flirty posing session for the paparazzi on the way to the Bloomberg Businessweek Dinner.

The 28-year-old wore a plunging red sequin Brandon V Maxwell dress that had a sweetheart neckline that revealed a generous amount of her cleavage. The sparkly number’s off-the-shoulder sleeves and low-cut back revealed the singer’s tattoos.

Her usually blonde locks were raven and tied in a bun.

She accessorized the look with a pair of stunning diamond earrings, and had her lips and nails the same dramatic color as her outfit.

Her eyeliner was strikingly contoured around her seemingly infinitely long eyelashes.

For the singer who aptly titled her 2009 album The Fame Monster, those words couldn't ring more true.

The eye catching display of her figure will certainly help her as she's on a promotional blitz for her new jazz album Cheek To Cheek with Tony Bennett and collaboration for H&M.

On Wednesday night the outrageous pop star performed with Tony Bennett at Rockefeller Centre, NY, in a stunning white gown that was cut to the navel.

Earlier in the week she continued playing up for the cameras with a whopping 16 outfit changings.

She enjoyed a jam-packed whistle-stop visit to London to attend the British Fashion Awards on Monday evening, followed by lunch with her new BFF Naomi Campbell the following day.

But less than 48 hours after arriving in the city, Rihanna was jetting back to New York once again.

Arriving in the Big Apple on Tuesday night after her transatlantic flight, the 26-year-old singer sensibly opted for comfort over style as she bundled up in a loose-fitting tracksuit and cosy coat.

Ensuring she wasn't restricted by her usual form-fitting attire, the We Found Love hitmaker rocked a low-key black zip-through two-piece and an oversized navy wool coat as she breezed through the arrivals terminal at JFK Airport.

Bracing herself against the chilly winter weather, Rihanna carried a grey blanket in her black leather tote bag.

The star completed her look with a pair of black horse hair-look boots.

The Bajan beauty wore her raven locks scraped back off her face into a tight bun, and opted for minimal make-up for the flight.

But in true A-list style, the pop princess made sure to inject a touch of A-list glamour with a pair of sassy sunglasses.

Rihanna enjoyed a whirlwind day in London, which saw her present a prize at the British Fashion Awards on Monday night, before dining with new bestie Naomi Campbell on Tuesday lunchtime as they grabbed a bite to eat at Hakkasan.

Rihanna and Naomi seemed like they'd been friends forever when they fawned over each other at the fashion bash on Monday.

From the swanky ceremony at The London Collosium to the star-studded after party at The Oscar Wilde Bar, the pair couldn't seem to separate themselves.

Rihanna jetted in to Heathrow airport on Monday and appeared to be making a bit of a week of it, staying late partying at the BFAs the same night.

The saucy singer hadn't been too concerned about beating the cold on Monday night when she arrived at the British Fashion Awards in just a tuxedo jacket.

Rihanna looked sexy in a one-button jacket dress that revealed her braless physique and her long legs in just thin tights.

She later changed into a low-cut dress, which she proceeded to put to her advantage when she grinded on one man on the after party dance floor.

Rihanna was on hand at the bash to present the Isabella Blow Award for Fashion Creator to Edward Enninful alongside supermodel Naomi.