Justin Timberlake & Jessica Biel - 2009 MET Costume Gala

Justin Timberlake and girlfriend Jessica Biel (in Versace Atelier) walk the red carpet at the “Model as Muse: Embodying Fashion” Costume Institute Gala at The Metropolitan Museum of Art in New York City on Monday (May 4).

The 28-year-old singer will join Kate Moss, Marc Jacobs and Anna Wintour in hosting the annual gala.

Other celebs spotted at the event include: Kate Hudson, Jessica Alba, Heidi Klum and Victoria Beckham.