One of the great rock eccentrics, TODD RUNDGREN is best known for his 1972 classic Something/Anything and the pop hits "Hello It's Me" and "I Saw the Light." His catalog extends to dozens of prog-rock and experimental albums, including 2004's critically acclaimed Liars. He's a cult artist similar to Peter Gabriel and David Bowie, and his fans exult in his eclecticism. Rundgren plays the Roxy on Thurs., MAY 3. $26.50. 8 p.m. 3110 Roswell Road. 404-233-7699. www.ticketmaster.com.