Erykah Badu contributed vocals to a cover of Ewan MacColl's "The First Time Ever I Saw Your Face" on the Flaming Lips' recent album of collaborations, The Flaming Lips and Heady Fwends, and also took part in the video. The latter is where things went awry. Badu and her sister Nayrok were both nude in the video, which includes self-indulgent slow-mo shots of Lips members and a tub full of glitter and a white creamy substance meant to look like jizz. Badu balked at getting in the tub, but her sister didn't, yet the final cut of the video suggests it was all Badu. She then took to Twitter to ream Coyne, telling him to "Kiss my glittery ass." Coyne responded with apologetic tweets interspersed with jokes that suggested he wasn't so repentant after all. It was hard to tell whether the feud was real, a publicity stunt or perhaps some mix of both, but it was the most amusing musician Twitter exchange this side of Courtney Love's stoned ramblings.