Watch Kesha Join Guster For ‘Happier’ In Los Angeles

How does this rank on the unlikely collaboration scale? Kanye West and Paul McCartney level? Robert Plant and Diplo level?

Apparently the pop singer Kesha, formerly known as Ke$ha, is a huge fan of the rock band Guster, and made a guest appearance with the band earlier last week with them at the Wiltern Theater in Los Angeles.

Kesha and guitarist Ryan Miller told the story of her fandom, as Kesha said she’s been a fan since childhood and that the band is her “fucking favorite.” Afterwards, she sang through the song “Happier,” from the 1999 album Lost and Gone Forever. Watch the clip below, thanks to Brian James:

[Via Jambands]