Singer-songwriter-nondoctor Tony Rogers is back with his self-help tunefest. Singing songs, spouting slogans, and making plentiful Gen-X references (I counted 29–that’s one every 3.1 minutes), Dr. Tony demystifies the Mars/Venus divide and pontificates that one is, in fact, the loneliest number. (Look what happened when David Lee Roth went solo–not pretty.) No passive affair, the evening calls for honest disclosure–audience members fill out preshow questionnaires, from which Rogers reads aloud and names names–and “full-assed” singing along. Those who attended last fall will find the show much the same, though there are a few new visual aids. Light and a little goofy, Pop Psychology is a better showcase for Rogers’s melodious, sardonic songwriting–well-known to fans of his band, the Good–than for his therapeutic or comic instincts. “Piano masseuse” Steve Kouba accompanies and offers cute sidekickery as one of Dr. Tony’s converts. Davenport’s Piano Bar & Cabaret, 1383 N. Milwaukee, 773-278-1830. Through March 1: Saturdays, 7:30 PM. $13 (plus a two-drink minimum).