Leighton Meester: 'The Roommate' Premiere!

Leighton Meester is hot in black at the premiere of her new film The Roommate on Sunday (January 23) in West Hollywood, Calif.

The 24-year-old actress chose a Michael Kors dress from the pre-fall 2011 collection, Brian Atwood shoes, and Harry Winston earrings.

Leighton was joined by her co-star Minka Kelly on the red carpet.

The Roommate, which is about a college student (Kelly) whose safety is jeopardized after being assigned to her roommate (Meester), launches into theaters on February 4th!

10+ pictures inside of Leighton Meester premiering her film…