Philadelphia hit-makers Boyz II Men, above, will be at the Great Western Forum on May 17 and Irvine Meadows Amphitheatre on May 19. Tickets go on sale Saturday. . . . Everclear will be joined by Marcy Playground and Fastball on May 20 at the Hollywood Palladium. Tickets go on sale Friday. . . . Available today: Kottonmouth Kings, April 30 at the Hollywood Athletic Club. . . . On sale Monday: Freebo, May 1 at McCabe’s; and Roy Zimmerman, May 2 at McCabe’s. . . . The House of Blues will celebrate its fourth anniversary with a special lineup of shows: James Brown, April 27 and 28; Les Paul, with guests including Joe Walsh, Stephen Stills, Dave Edmunds, Steve Vai and Skunk Baxter, April 29; John Lee Hooker and John Mayall, April 30; Johnette Napolitano, May 1; Celia Cruz, May 2; and Natalie Cole, May 11 and 12. Tickets are available now. . . . Also available now: El Vez, May 4 at the House of Blues; Zero, May 6 at the Coach House; Dave Mason with Jim Capaldi, May 29 at the Ventura Theatre; King Sunny Ade, June 16 at the Coach House; Acoustic Alchemy, June 20 at the Coach House; and the Marshall Tucker Band, July 1 at the Ventura Theatre.