Cyrus hit the stage with Robin Thicke at the awards ceremony last month (Aug13) to perform his hit track Blurred Lines, but her 'twerking' dance moves and controversial outfit sparked hundreds of complaints to America's broadcasting regulator The Federal Communications Commission.
It has now emerged pop rocker Pink has sided with Cyrus' critics, insisting the performance did not do justice to the former Hannah Montana star's talents.
The So What hitmaker tells E!, "I think it's tacky... She's really freaking talented. She's beautiful. She can sing her as** off and to go up there and do that? She's cheating herself and she's cheating the rest of us. She can do what she wants. People can like it if they want. I'm not going to buy it.
"She can do better. I've seen her do better... I twerk all the time like a mofo (sic). There's a place for that and it's not on stage."