The Museum of Contemporary Art will kick off a year-long celebration of its 50th anniversary with an arts-filled party tonight at 9. The lineup of local acts includes Mourning [A] BLKstar, Punch Drunk Tagalongs, DJ Candi Fresca, Sophie Benn and Case Barge. In addition, local burlesque queen Bella Sin will be on hand with guest performers, and there will be a special DJ event hosted by the local collaborative In Training. Inlet Dance Theatre will perform, and local poet Damien McClendon will read from his work. General admission is $15. VIP tickets include early entry, an open bar from 8 to 9 p.m., and special demonstrations by select New Agency chefs, mixologists and artists, along with a full-night private lounge, light fare, one drink ticket, top-shelf private cash bar and valet. Those tickets cost $75. (Niesel)