Hot Air Rights Will Cost You

Friends of the High Line summer benefit. IAC Building, 555 W. 18th St., nr. West Side Hwy., 6:30 p.m. Expected: Kyra Sedgwick and Kevin Bacon, André Balazs, Barry Diller, Gifford Miller, Ed Norton. A coterie of crazed developers plans to throw up some heinous buildings and block out the sun while the stars are unwittingly swilling Champagne.

Cipriani Wall Street Concert Series featuring 50 Cent. Cipriani, 55 Wall St., nr. William St., 7 p.m. The event benefits 50's "G-Unity Foundation" as well as the Duchess of York's "Sarah Ferguson Foundation," and frankly those organizations are probably so similar that they might as well merge.

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