Pennywise, with lead singer Jim Lindberg, left, will headline a punk bill at the Los Angeles Sports Arena on Jan. 21 that also features the Long Beach Dub All-Stars, the Vandals and T.S.O.L. Tickets go on sale Saturday. . . . Also available Saturday: Powerman 5000, with Static-X and Dope, on Feb. 2 at the Palace. . . . Luis Miguel has added two more shows at the Universal Amphitheatre, extending his engagement to four nights. Tickets for the Feb. 5 and 6 shows go on sale Sunday. . . . The annual Sno-Core Tour comes to the Hollywood Palladium on Jan. 20, with System of a Down, Incubus, Mr. Bungle and Puya. Tickets go on sale today. . . . Tickets also go on sale today for four Glass House shows: Unwritten Law with 22 Jacks Jan. 20, Black-Eyed Peas Jan. 21, Tom Racer and the Lassie Foundation Jan. 29, and the Murder City Devils Feb. 11. . . . Coming to the Troubadour: Unida and Nebula on Jan. 7 and Travis Jan. 27. Tickets go on sale Saturday.