Jack Black sings for charity

Jack Black has used his vocal skills to raise money for charity after taking part in a celebrity karaoke fundraiser.

The School Of Rock star headlined UNICEF's Playlist for A-List event, which benefits the Schools for Africa by allowing guests to bid for an opportunity to sing alongside celebrities in a live duet.

Jack Black wowed the audience with a rendition of Black Sabbath's eponymous track, while host, actor Bill Bellamy, sang Journey's Don't Stop Believing.

Other stars to take part included Ne-Yo, model Brooklyn Decker, James Denton and Ryan Bingham.