South By Southwest Interactive is over, which means the festival's annual film and music maelstrom is officially underway. Expect even more incessant updates to your Twitter feed about what must-see artists you're missing out on, and which celeb entourage hogged all the barbecue sauce at Salt Lick. XXL has a nice recap of the 30th anniversary show from SOB's on Wednesday night, which unfortunately was not treated to a livestream broadcast. We can't all be sponsored by American Express! Still, the night boasted acts like Miguel and 2 Chainz, who ushered in surprise guest Big Sean for a performance of "K.O.," and later his Def Jam big brother Kanye West. Though not on the bill, we doubt the crowd minded the party crashing. Together Sean and West performed the celebratory chart-topper "Marvin & Chardonnay," jumping around the crowded stage and throwing their arms around their gracious hosts, just like you do after a couple drinks in fear your friends won't know how much you love them until you've nearly choked them to death.
Yeezy eventually launched into a "Can't Tell Me Nothing" singalong, furthering the case for an always lively Graduation vs. My Beautiful Dark Twisted Fantasy debate, and slightly stealing the spotlight from his peers and the historic venue. This is the second year in a row he's made the pilgrimage to Austin, following his G.O.O.D. Music set for VEVO in 2011. So as an SXSW veteran, ask his crew where the best breakfast tacos are. For those seething with jealousy, pretend you were in-house by watching the video below. And in case things like this lead you towards irrational spending, here's what flights to Austin are currently going for.