Surprises are almost expected at Coachella, but the 2013 Coachella Festival had a surprise no one expected. French band Phoenix brought out none other than R&B crooner R. Kelly to close their April 13 set.

Phoenix were just tearing into their hit '1901' when Kelly came onstage and sang his 'Ignition' remix over the track. Kelly also hung out during the group's performance of their song 'Chloroform' and had them back him for 'I'm a Flirt.' It wasn't necessarily a seamless mashup of their songs, but it sure as heck looked like fun.