KE$HA's lyrics for her new Alice Cooper duet were so "disgusting", the shock rocker found himself having to "rein her in".
The veteran star has struck up an unlikely friendship with Tik Tok hitmaker Ke$ha over the past year and the pals have even made surprise appearances at each other's concerts, teaming up for a rendition of Cooper classic School's Out.
Now the rock wildman has recruited Ke$ha, who affectionately calls Cooper "dad", to appear on his new album Welcome 2 My Nightmare and he insists fans will be surprised by how crazy the pop star can be.
He says, "I like people that don't belong and yet what they're doing works perfectly. I don't care where it comes from, as long as it's right. If you tell me something doesn't work, I'll work my head off until it does then shove it down your throat.
"I think a lot of my audience is going to go 'KE$HA!?', but she probably wrote the most disgusting lyrics in the song - we had to rein her in. I like people to know that just because artists are put in a pigeon hole, that doesn't mean that's what they are. Give people a little room."