"When I got to her house, she said, ‘I’ve never taken acid, so I can’t sing about that stuff.’ She’s done lots of other drugs, but not acid. So she was like, ‘Why don’t we do some acid, and then I can sing about it.’ She told her assistant, ‘Go get us some acid.’ Her assistant would’ve just ran out and got everybody a bunch of acid— how great is that? But we didn’t, because I was like, ‘Listen lady, I’m not going to do a bunch of acid with you tonight, because we have to record.’ Plus, I didn’t really want her to. The way she is, it’s as though she’s on acid already."

— The Flaming Lips’ Wayne Coyne talks to us about working with Ke$ha.