SXSW 2011 may have been our best year yet for celebrity sighting. Here are all the celebs we saw at this year’s fest.

Jake Gyllenhaal attended the red carpet for The Source Code, as did co-stars Vera Farmiga and Michelle Monaghan. The event ended in drama as someone snapped a picture of Gyllenhaal in the bathroom.

The IFC Crossroads House was a stellar spot for celeb spotting. Our faves were Ashton Kutcher and Demi Moore! Others include: Soleil Moon Frye, Jason Ritter, Eliza Dushku, Rick Fox, Brittany Snow, Mike Tyson, Rainn Wilson, Conan O’Brien and Paul Ruebens.

We also crossed paths with Wilson and co-star Ellen Page at the red carpet for the film Super.

Perez Hilton’s “One Night in Austin” party was back, this time at ACL Live where Taylor Momsen and The Pretty Reckless performed. Rachael Ray’s Feedback party returned to Stubb’s as well but this year (Jimmy Kimmel was spotted in VIP), she also hosted an event on the East side. We spotted Duran Duran at a VH1 event. But the highlight of the fest was Jay-Z and Kanye West performing a massively packed show at the Seaholm Power Plant.