Rocker Wayne Coyne has paid tribute to pop bad girl Miley Cyrus, insisting she is one of the most fun singers he has ever worked with.

The Flaming Lips frontman recruited the Can't Be Tamed hitmaker to contribute vocals to two tracks on the band's reimagining of The Beatles' classic album Sgt. Pepper's Lonely Hearts Club Band.

The former Hannah Montana star sings on renditions of Lucy in the Sky with Diamonds and A Day in the Life, and now Coyne has praised Cyrus for her professionalism and her approach to work.

He tells NME magazine, "On my birthday, Miley Cyrus tweeted me 'Happy Birthday'. I tweeted back 'Let's do something together'. So we swapped numbers and soon found ourselves in the same studio. I've been around people in a similar position to her and they are not fun. She is. She's bad**s, and she does things with enthusiasm and love."

The album, titled With a Little Help from My Fwends, is due for release on 28 October (14).