Ken Kelley

Last night, in the first of what undoubtedly will be many surprise collaborations at SXSW 2013, Swedish synth-pop duo Icona Pop was joined onstage by British goth-pop riser Charli XCX for a performance of their hit track 'I Love It.' Charli appears on the single, but this marked the first time the trio has performed the song together live. Even in the brief 40-second clip above, you can practicall

The music is flowing at SXSW 2013, and Ra Ra Riot's complete one-hour SXSW Social Underground set -- which took place yesterday (March 12) -- is now streaming online (watch it above). While the footage is a little on the dark side, the group's energetic synth-fueled pop seems to be a hit with the Austin crowd gathered to see them.