Rihanna attended the Stella McCartney fashion show in Paris on Monday, and the 26-year-old R&B singer bundled up in a printed green coat and caused quite a bit of chaos when she made her way outside.

Bad Gal RiRi also made headlines over the weekend when she exposed her nipples in a sheer lace top at the Jean Paul Gaultier show, and she turned heads yet again when she wore a fur stole to the Commes des Garcons with the word "fear" written on it.

Later on over the weekend RiRi stopped by the Givenchy show, and she wore this hip hop-inspired ensemble:

Someone's trying to win her back!

Justin Bieber and Selena Gomez haven't been together for a while now, but it seems the Canadian pop star is trying to get back in the brunette beauty's good graces by praising her on Instagram!

"Most elegant princess in the world," he captioned a snapshot of the Spring Breakers star at last night's Vanity Fair Oscar bash.

Considering the "Come & Get It" singer had to check-in to rehab in January for a reported addiction to her former beau, amongst other issues, we think JB should stop pulling her in a million different directions emotionally!

Knowing him, the hip hop bad boy will be hooking up with a new groupie before the week is over!

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Kanye West made an appearance at the Celine Fall/Winter show on Sunday in Paris, and the 36-year-old rapper wore a chambray top, jeans and his fav tan worker boots. He's just SO fashion forward!

Yeezy sat front row for that show, and later in the day he stopped by the Givenchy show, and we're guessing he got the VIP treatment, as he's besties with the label's creative direction Riccardo Tisci. Kim Kardashian's fiance gave us his very best blue steel when he posed for photos outside:



But when is he coming home to Kim? Hopefully she's not jealous of all the time he's spending in Paris with Riccardo...

What a milestone!

Justin Bieber has acquired 50 million followers on Twitter, and he decided to send a message to all his fans once he hit the mark!

"#50millionstrong. Love to my beliebers," he wrote on the social networking site.

The Biebs isn't the first celeb to achieve the goal, though! Katy Perry racked up 51 million followers back in February.

"Bizzle" just celebrated turning 20-years-old on March 1, but it seems his biggest gift came a few days late!

Getty Images for Vanity Fair

From photo bombing Anne Hathaway to moving us to tears during his acceptance speech, Jared Leto is our hero!

The 42-year-old actor attended the Vanity Fair Oscar after party on Sunday night, and while Anne was posing for photos, Jared playfully interrupted with a series of silly faces and his statuette. And then the shout out to his mom when he took the podium to accept the award for Best Supporting Actor? We die!

"In 1971, Bossier City, Louisiana, there was a teenage girl who was pregnant with her second child. She was a high school dropout and a single mom, but somehow she managed to make a better life for herself and her children. She encouraged her kids to be creative, to work hard and to do something special. That girl is my mother and she’s here tonight," Jared said. "And I just want to say, I love you, Mom. Thank you for teaching me to dream."

Jared thanked his brother and a slew of other individuals and added, "And this for the 36 million people who have lost the battle to AIDS and to those of you out there who have ever felt injustice because of who you are or who you love, tonight I stand here in front of the world with you and for you. Thank you so much and goodnight."

And in case you missed it, check out Jared's touching acceptance speech below!

#Uncomfortable!

Orlando Bloom and ex Miranda Kerr both attended the Vanity Fair after party following the Oscar's last night, and the actor decided to surprise his former Mrs. in the middle of a TV interview she was doing on the red carpet!

Needless to say, it was extremely awkward as the Pirates of the Caribbean star came up behind the Aussie model and kissed her on the cheek before telling her, "Hi, you look amazing."

The Broadway star then asked the Victoria's Secret stunner if she was doing well, and once she responded, "Yes I'm good", he walked off to head into the soiree.

Maybe their split wasn't as "amicable" as they claim it to be!

Getty Images for Elton John Aids Foundation


Getty Images for Chopard

Yowza!

On Sunday night Kim Kardashian attended the Elton John Aids Foundation Oscar viewing party in West Hollywood, and the reality starlet showed off her curves in a very revealing red Celia Kritharioti gown. In fact, it might have been too revealing -- as far as we're concerned, only Kanye and Nori should be seeing that much of Kim's breasts!

Kim was joined by her sisters Kourtney and Khloe and their mom Kris, and the rest of the ladies went the more demure route with their fashion. Khloe wowed in a burgundy velvet gown, and she wrote on Instagram, "I'm in love with my @marcbouwer dress!!!! Thank you @robzangardi and @marielwashere for making me feel like Jessica Rabbit tonight."

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Britney Spears traded in her signature sweats for a plunging dress as she and boyfriend David Lucado attended Elton John's 22nd Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park on Sunday. These two certainly look like they are going strong!

Last night the newly brunette singer tweeted a pic of the duo with the caption, "Getting ready to go to Elton and David's party! Love this amazing event that's for a great cause :)."

The "Toxic" singer wowed in a sheer black Michael Costello Couture dress, Giuseppe Zanotti shoes, a House of Harlow bag, and Lorraine Schwartz jewelry.

Britney we like this couture look -- keep it up! Please!

Taylor Swift was another one of the stars who also attended Elton's glittering bash. The country crooner donned a sequined Julien Macdonald gown with sheer panels down the long sleeves.

Getty Images for Elton John Aids Foundation