Last Night's Look: Hit or Miss?

Vote on this week's styles including Cameron Diaz, Blake Lively and more stars! You decide – are they fashionistas or flops?

  • MARIAH CAREY photo | Mariah Carey

Credit: Abaca

Updated: Friday May 29, 2009 | 12:00 PM EDT

MARIAH CAREY

The songbird hits a high note in a plunging Roberto Cavalli halter gown at the Mardan Palace hotel opening in Turkey.