Friday-night admission to The Andy Warhol Museum is half-price year-round, but this month you’re luckier still: Starting tonight, admission for the museum’s weekly Good Fridays event is free all month long, courtesy of UPMC Health Plan. With DJ music and the museum’s bar, the atmosphere is loungey, and the whole joint is open, including the permanent exhibits on Warhol’s own life and work. It’s also the last days to see Farhad Moshiri: Go West, featuring work by the contemporary Iranian artist. That exhibit closes Jan. 14. -Bill O'Driscoll