Charlotte Church surprised customers at the Two Brewers gay club in Clapham by kicking off her shoes and giving a rendition of Alannah Myles’s Black Velvet.

Church was on a night out with friends after seeing the premiere of the Wizard of Oz show in London’s West End. She had been on the panel of judges that chose the actress to play Dorothy, Danielle Hope, on the BBC One reality show last year.

A punter told The Sun: “She seemed to really enjoy it and got massive applause from everyone. After that she was mingling with everyone and when she popped outside she was sharing cigarettes with people.

“Everyone loved it and she belted out a really good rendition of Black Velvet.”