Supergrass is slated to release its new single, ''"Diamond Hoo Ha Man''" on January 14 on 7-inch vinvl (remember that?), and an as-yet untitled album will be released in March on Parlophone. In bizarre Supergrass news, bassist Mick Quinn is recovering from a broken back that he sustained in a sleepwalking accident. Billboard didn'''t have any more details. Charly Coombes, brother of band members Gaz and Rob Coombes will fill in on bass for a couple upcoming U.K. shows in December. [Billboard]