The Flaming Lips have posted a clip of their collaboration with Bon Iver.

The track – still a work in progress – is set to feature on a whole EP’s worth of Lips collaborations, which they’re preparing to release on Record Store Day (April 21). Nick Cave, Ke$ha, Lykke Li and Erykah Badu, along with Bon Iver’s Justin Vernon, are the participating guests.

Lips frontman Wayne Coyne shared a clip of the Bon Iver track via Twitter, with the words “Yesssss!!! Bon Iver track is comin along!!!”. Listen here.