• Def Jam: Icon party. Ultra, 37 W. 26th St., nr. Broadway, 8 p.m. Funkmaster Flex, Russell Simmons, Paul Wall, Method Man, and Redman are scheduled to be among those celebrating the third iteration of the be-a-hip-hop-mogul video game. Which is interesting because Simmons is a hip-hop mogul who's making money off this video game. So one presumes that a good move in the game is making your own video game, and on and on into infinity.

• The Namesake premiere. Chelsea West Cinemas, 333 W. 23rd St., nr. Eighth Ave., 6:30 p.m. Star Jacinda Barrett and director Mira Nair are expected along with Jhumpa Lahiri, Steve Buscemi, Sofia Coppola, Jim Jarmusch, Donna Karan, and others. There will also be a number of Bollywood stars (making English-language turns in the film), but sadly not as many elaborate dance numbers.

Or check out our Agenda listings for tonight, selected by New York's culture editors.