Tenacious D's Jack Black: Rock music is in bargain bin

Jack Black, Hollywood actor and one half of comedy music duo Tenacious D, says rock music is currently "niche" and "in the bargain bin".

The band's third album Rize Of The Fenix topped the UK's official midweek chart update this week, but is battling Keane's Strangeland album for top spot on Sunday (20 May).

Jack and his bandmate Kyle Gass spoke to Newsbeat's music reporter Greg Cochrane.