Some of fashion's biggest designers had their latest runway choices make a splash at the "Teen Choice Awards" this weekend on young Hollywood's biggest stars. Among them were Louis Vuitton, Christian Dior, and Marc Jacobs.

Leighton Meester picked up an award for her role on "Gossip Girl" and is picking up votes for Best Dressed of the night with her black and white striped Louis Vuitton dress. She paired the chic mini, from his Resort 2010 collection, with a pair of bright red Brian Atwood heels.

Kate Moss' boyfriend threatened to dump her because of a blanket. The supermodel reportedly infuriated The Kills rocker Jamie Hince - who is vegan - by purchasing a rabbit fur bedspread for the bedroom of her London home.

Jamie allegedly told Kate: "It's me or the dead animals."

Rihanna has performed for the first time since she was allegedly assaulted by her on/off boyfriend Chris Brown. The "Rehab" singer - who was dressed in a black Dolce and Gabbana power suit - joined Kanye West on stage at the Metropolitan Museum of Art Costume Institute Gala in New York on Monday.

The pair performed a duet of Kanye's song "Say You Will" before Rihanna belted out an emotional rendition of her hit "Live Your Life."

Madonna is so depressed over her adoption rejection she has stopped eating and exercising. The singer has allegedly gone into a downward spiral since a court ruled against her adoption of four-year-old Mercy James from Malawi earlier this month, and friends are worried for her health.

A source said: "She has abandoned her strict macrobiotic diet and is virtually eating nothing. She has even stopped training since she returned from Malawi and seems to be in a trance a lot of the time."

Madonna burst into tears during a night out in London Tuesday. The singer was enjoying dinner at Cecconi's Restaurant in Mayfair with designer Stella McCartney when she reached into her handbag and pulled out a picture of Mercy James, the four-year-old Malawian orphan she is trying to adopt.

But after a few minutes of excited conversation, the 50-year-old star started sobbing while Stella, 37, tried to comfort her.