Watch Wayne Coyne and Kesha perform with Ben Folds Five

Last night, Wayne Coyne of the Flaming Lips and Ke$ha joined Ben Folds Five on stage during their headlining set at the Ryman Auditorium in Nashville to perform the country duet "You're The Reason Our Kids Are Ugly." Video proof can be watched below.

For those not aware, Ke$ha appears on "2012", a track from TFL's Record Store Store release, Heady Fwends. Also, Folds covered the dance-pop singer's hit "Sleezy" back in 2011.