• "We Are the Pool" video premiere. Union Pool, 484 Union Ave., nr. Meeker Ave., Williamsburg, Brooklyn, 7 p.m. How do you wrestle control of public space from the clutches of an evil, expensive promoter? Simple: Gather your Brooklyn pals and do an ironic reenactment of "We Are the World." The city will be very sympathetic.
• A Conversation With Bono. Time Warner Center screening room, Time Warner Center, 10 Columbus Circle, nr. Central Park S., 6:30 p.m. The conversation will begin "promptly" at 7 p.m., to be followed by a "supper party" at 8. Supper! How quaint! Will there be meat loaf?
• Jewish Museum masked Purim ball. Waldorf=Astoria, 301 Park Ave., nr. 49th St., 6:30 p.m. Isaac Mizrahi will tell the Purim story to Kenneth Cole, Fern Mallis, and others. You know you're in a tolerant city when a man so gay he once had a show on the Oxygen network takes the lead in celebrating a religious holiday.
Or check out our Agenda listings for tonight, selected by New York's culture editors.