At the Coachella Valley Music and Arts Festival, attendees have comes to expect unique performances.  Last year, a hologram 2Pac performed.  This year, R&B star R Kelly performed his hit Ignition (Remix) with French indie rock band Phoenix.

During Phoenix's Saturday headling set, concert goers heard R Kelly belt out the first few lines of his song Bump n' Grind.  Then, Phoenix started playing their song, 1901.  Then, R Kelly and Phoenix singer Thomas Mars sang the lyrics to Ignition Remix) while the band continued to play 1901.