David Letterman is ready to rock and/or roll. The late night host's company, Worldwide Pants, has started yet another venture that has nothing to do with pants: a record label.

Letterman has signed California pop/punk rockers Runner Runner to his new Clear Entertainment/C.E. Music label. The band's catchy, if not so groundbreaking, first single, 'So Obvious,' is streaming now on their MySpace page. The label will release Runner Runner's debut album later this summer.