Getty Images for Clara Lionel Foundation
We knew Brad Pitt had a wicked sense of humor, but who knew he was capable of making Rihanna blush?!

Last night the 50-year-old actor made a bit of a surprise appearance at the First Annual Diamond Ball at The Vineyard in Beverly Hills, which benefitted Rihanna's Clara Lionel Foundation. Jimmy Kimmel hosted the event and introduced Brad, who then gave a speech and introduced Rihanna. But it wasn't just any speech -- it was more of a roast!

Angelina Jolie's hunky hubby started off in a very serious tone, and as an image of a very young Rihanna appeared on the screen behind him, he said, "I've often asked the very questions you yourself are asking right now—what the f*ck went wrong?"

"I give you exhibit A," he said. "Look at the young girl before you, all full of hopes and dreams, living a humble existence in Barbados, her whole life ahead of her." Pitt added that RiRi "soon fell in with a bad crowd led by the dubious and nefarious character known as The Jay Z."

"For those you not in the know, The Jay Z was an evil impresario known for turning out hit records and ripping insane lyrics and fresh beats," Brad continued. "Needless to say it was all downhill from there." Brad then praised Rihanna for selling 54 millions albums, winning seven Grammys and having "only 90 million Facebook fans and 40 million Twitter followers," but when a Photoshopped image of an overweight Rihanna on a couch popped up behind him, Brad joked, "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 *ss and do something. God damn it, just do something with your life.'"

So how did Bad Gal RiRi get Brad to show up? "Brad Pitt loves charity, he loves giving back and it was just as simple as that," she told E! News' Marc Malkin on the red carpet. "He was honored to be a part of it, so I'm really happy he's here." That was easy!

Getty Images for Clara Lionel Foundation

Ashton Kutcher appears on The Ellen DeGeneres Show today, and we never thought we'd see the day where the former Punk'd star talked about being a doting daddy!

"[T]he most amazing thing about having a baby is my partner, Mila," he gushed. "She’s the greatest mom I can’t even, like I go to work every day and I come home and she’s like perfect. And it just seems like everything went amazing. And I know that something probably didn’t go amazing, but she never tells … it’s unbelievable. She’s incredible." Awww!

Ashton reveals that he and fianee Mila Kunis don't have any nannies, and that co-parenting with her is "awesome" and "unbelievable."

"It’s just how much you can love another person," he continued. "You think you know how much you can love another person and then you have a child and you realize you didn’t know. It’s infinitely rewarding. There’s a great quote by Carlos Slim and he said 'most people think they need to make a better world for their children, but the reality is we need to make better children for our world.' And I try to live by that. And I think I really look at this as the greatest opportunity of my life."

On a different note, Ashton hints that Charlie Sheen will be joining the finale of Two and A Half Men in February. What?! Click thru to see that part of the interview...

Getty Images for Clara Lionel Foundation

On Thursday night a slew of stars braved the rain and headed to the First Annual Diamond Ball at The Vineyard in Beverly Hills, and this was a charity gala for Rihanna's Clara Lionel Foundation. RiRi founded the organization in 2012, which "works to improve the quality of life for communities globally in the areas of health, education, arts, and culture."

Rihanna wowed in a rosy-hued Zac Posen dress and Chopard jewels while Kim sexed it up in an Alexander Wang for Balenciaga ensemble. After posing on the red carpet and inside the party, Rihanna changed into a strapless black gown and hit the stage. She was introduced by none other than Brad Pitt (more on that later), and she performed a medley of her biggest hits, including "Diamonds," "Pour It Up," "Umbrella," and "Run This Town" with a full orchestra.

The singer tweeted:

"Feel so lucky to have an evening like this, to spend with people with hearts like mine, who want to change and save lives at any cost! There’s so much to do, and I can’t do it all by myself, so I have to thank all of the supporters of and people who donated to #TheClaraLionelFoundation Looking forward to seeing you later this evening."

Kris Jenner was there as well, and while she showed some cleavage, she didn't quite give daughter Kim a run for her money:

She's glowing like a Golden Globes statue! Just hours after she was nominated for a Golden Globe, Reese Witherspoon was smiling ear to ear while visiting her office in Beverly Hills on Thursday. The Oscar winner got the Globes nod for Best Actress in a Drama for her role in Wild -- and it looks like she kept her movie in mind while getting dressed her her wild, leopard-print coat.

The actress paired her leopard-print coat with a navy blue shift dress and navy pumps -- we are loving this look!

And while all seems to be going swimmingly this awards season, the 38-year-old recently opened up to Glamour magazine about cherishing her female pals who saved her in hard times.

The mom of three confessed, "I am so, so lucky to have girlfriends who, when I was on the floor crying, upset about things that happened in my life, came over, stood me up, put me in the shower, put my clothes on, took my kids to school, brought me dinner. You know? I love my girlfriends, and I protect those relationships fiercely."

We are glad those friends helped out -- because it seems as though Reese is back and better than ever! Does anyone else smell Oscar gold in her future?!

Rich people problems!

Amber Rose whipped around Beverly Hills in her brand new Ferrari today, but her cruise was cut short when her fancy ride got a flat tire! The model asked a passerby what she should do about it, and instead of calling AAA like most people, she decided to drive to a nearby gas station.

How did the bald beauty afford such an expensive car? Maybe she got some money after her split from Wiz Khalifa, but since their divorce hasn't been finalized, that seems unlikely. A more likely explanation? Her new manager Nick Cannon gave it to her as a present! There are rumors flying that the two are enjoying a romantic relationship in addition to a professional one, so it's totally plausible Mariah Carey's ex was trying to woo Miss Rose with the pricey wheels!

Looks like Selena Gomez still has a case of the Bieber fever! The Bieb's on-again/off-again love just opened up to Norwegian radio station NRJ about her sometime flame.

After being asked about her breakdown during her "The Heart Wants What It Wants" AMA performance, the 22-year-old said, "I definitely have so much respect and love for him. The singer said, "Going into the studio is just very therapeutic. It was my way of having it be a message more to people in general. People everywhere feel this feeling. They should understand when anybody goes through that. They just can't help what they want and [who] they love."

Maybe Selena should have so much love and respect for herself -- and not JB? Just a thought!

When pressed, the petite brunette also revealed she was single but wasn't about to hop on dating apps such as Tinder.

"Oh, goodness no!" she said. "I don't even know how to work it, to be honest."

Last month, the former Disney star also spoke of her relationship (which sounds pretty codependent to us!) with the Canadian troublemaker. Selena said, "I support him. I think I always will. I'm upset when he's upset. I'm happy when he's happy. I don't want anything bad ever to happen to him. It hurts me. That's all."

#doormat!

Beverly Johnson revealed in a shocking new interview with Vanity Fair that Bill Cosby drugged her, but she managed to thwart any further harm, unlike many of the other women with similar accusations. The event happened in the mid-80's after the supermodel went to the actor's apartment to read for a part on The Cosby Show. The comedian insisted she drink a cappuccino from his new fancy machine, but she quickly realized his sinister motives.

"I told him I didn't drink coffee that late in the afternoon because it made getting to sleep at night more difficult. He wouldn't let it go. He insisted that his espresso machine was the best model on the market and promised I'd never tasted a cappuccino quite like this one," she told the mag.

"Now let me explain this: I was a top model during the '70s, a period when drugs flowed at parties and photo shoots like bottled water at a health spa. I'd had my fun and experimented with my fair share of mood enhancers. I knew by the second sip of the drink Cosby had given me that I'd been drugged—and drugged good," she continued. After propping herself up on Cosby, she asked him: "You are a motherf***er aren't you?"

Her anger is what ultimately saved her from further harm, as Cosby got "pissed" after she began acting out. "I recall his seething anger at my tirade and then him grabbing me by my left arm hard and yanking all 110 pounds of me down a bunch of stairs as my high heels clicked and clacked on every step. I feared my neck was going to break with the force he was using to pull me down those stairs," she recalled. The fashion icon was then shoved in a taxi by the TV star.

So how come she never decided to press charges?

"At a certain moment it became clear that I would be fighting a losing battle with a powerful man so callous he not only drugged me, but he also gave me the number to the bedroom he shared with his wife. How could I fight someone that boldly arrogant and out of touch? In the end, just like the other women, I had too much to lose to go after Bill Cosby. I had a career that would no doubt take a huge hit if I went public with my story and I certainly couldn't afford that after my costly divorce and ongoing court fees," she explained.

She's brave for telling her story!

We aren't ever gonna forget Dre now! Forbes just released their list of the world's highest-paid musicians of 2014 -- and Dr. Dre has coming in on top, and way on top. Due to the recent sale of his company, Beats, for $3 billion, the rapper/businessman came in at $620 million, $500 million more than the No. 2 musician, Beyonce, who made $115 million in 2014.

The Eagles, who did a History Of The Eagles tour, earned $100 million. Bon Jovi came in fourth with $82 million and Bruce Springsteen landed fifth with $81 million.

The artists under 30 who made the list were Justin Bieber ($80 million), One Direction ($75 million), Katy Perry ($40 million), Miley Cyrus ($36 million) and Lady Gaga ($33 million).

Looks like Taylor Swift just missed the Top 10. T-Swizz finished at No. 11 ($64 million).

Money, money, money!