Like his brother David before him, Shaun Cassidy has apparently tired of grinding out formula pap for teenyboppers; what he wants now is artistic credibility. Thus, his new album, Wasp, features such respected names as Todd Rundgren (who produced) and Utopia, plus songs by bubblegum-free artists like David Bowie, Pete Townshend, and Talking Heads’ David Byrne. (Not surprisingly, a prominent jacket sticker announces such names.) There’s no question that the program and backup here constitute an improvement, but they’re not enough to make up for Cassidy’s mediocre voice and limited interpretive abilities. The results range from just so-so to truly atrocious.