He looks like porn star Ron Jeremy, gets off on Bell Biv Devoe, opens shows for the Strokes and wears assless pants. With a minidisc player pumping disco beats, Minnesota native Har Mar Superstar (a.k.a. Harold Martin Tillmann) mixes sexy rhymes ("Deeper, deeper, I can feel your beeper") with a striptease act and the voice of a true soulman. His new album, You Can Feel Me, is out in October. "Because I'm chubby, white people think it's funny, which is fine," says Har Mar. "But I love R&B. Pretty soon I'll be doing duets with Mary J. Blige."