Also this week: CAT POWER was once known for her unpredictable live shows and predictable — because
Also this week: CAT POWER was once known for her unpredictable live shows and predictable — because they were always excellent — CDs. Then came a much-publicized trip to rehab and a much-lauded collaboration with Teenie Hodges and other great session musicians, "The Greatest" (Matador). And now she is a much less well-kept secret than she used to be. On Sunday she comes to the Hiro Ballroom to entertain an audience that still, even after her triumphant year, doesn't know exactly what to expect. 7 p.m., 371 West 16th Street, Chelsea, (212) 727-0212; $25.