Last Night's Look: Hit or Miss?

Vote on this week's styles including Ashlee Simpson, Mariah Carey and more stars! You decide – are they fashionistas or flops?

  • HEIDI MONTAG  photo | Heidi Montag

Credit: Dan Steinberg/AP

Updated: Friday May 15, 2009 | 11:45 AM EDT

HEIDI MONTAG

The Hills star trades in her bridal trousseau for an off-the-shoulder black ruffled dress, cinched at the waist with a corseted buckle belt, and matching platform heels for the T-Mobile party in L.A.