Summer came early last week as the hottest music and film stars descended on Austin, Texas for SXSW and rocked what are sure to be the biggest fashion trends for the upcoming warmer months!

Hollywire was there for all the action and we noticed one major theme -- retro is in! From Marcus Mumford to Perez Hilton to Norah Jones, the stars of SXSW channeled the decades of yesteryear with old-school looks like denim jackets, flowy, patterned dresses, and cropped tops!

Check out our super-special Street Style: SXSW Edition after the jump!