Stars studded at the Metropolitan Museum of Art Costume Institute Benefit

Actress Saoirse Ronan poses on the red carpet at the Metropolitan Museum of Art Costume Institute Benefit celebrating the opening of Alexander McQueen: Savage Beauty in New York, May 2, 2011.[Photo/Agencies]

Actress Saoirse Ronan poses on the red carpet at the Metropolitan Museum of Art Costume Institute Benefit celebrating the opening of the exhibition "Alexander McQueen: Savage Beauty" in New York May 2, 2011.[Photo/Agencies]