NO stranger to baring her bottom CHER unleashes a reign of words slamming PR happy MILEY.

Cher, 67, told USA Today that Miley’s spasmodic, sexless performance with Robin Thicke was "so bad" .

Cher found absolutely no shock value in the pre-fab Twerk controversy.

"I'm not old-fashioned," Cher said.

"She could have come out naked, and if she'd just rocked the house, I would have said, 'You go, girl.'

“It just wasn't done well.

“She can't dance, her body looked like hell, the song wasn't great, one cheek was hanging out.

“And, chick, don't stick out your tongue if it's coated."

The whole “performance” seemed rather brainless, Cher chided.

"If you're going to go that far, then think about it before you do it."