Last night, Jay-Z performed the first of two planned benefit shows at New York's Carnegie Hall, backed by an orchestra and the Illadelphonics, an ensemble featuring Questlove and Bilal. Liza Minnelli was there. Over the course of the evening, Jay changed from a white tux into a black tux and then a black T-shirt, ending the night by rapping a medley of Reasonable Doubt snippets from the balcony. Beyonce made her first post-baby appearance at the concert's after-party, pairing a red dress with Blue Ivy-blue nails. Watch Jay perform "Glory," above and "N.Y. State of Mind" with guest Nas, below.