Justin Timberlake and Beyonce Rock!

Justin Timberlake and Beyonce perform on stage during the Conde Nast Media Group’s 2008 Fashion Rocks at Radio City Music Hall in New York City on Friday night.

JT and Beyonce performed Marvin Gaye’s “Ain’t Nothing Like the Real Thing” at the Fashion Rocks event.

Justin, 27, also rocked out the short tie and rolled up jeans on the red carpet.

Gold jumpsuit by Gaultier Paris.

WHAT DO YOU THINK of Justin’s short tie look – BIG FASHION or BIG MISTAKE?

25+ pictures of Justin Timberlake and Beyonce rocking…