Appearances: Performed at Alexander Wang's after party; Herve Leger by Max Azria show

After sitting front-row at the Herve Leger by Max Azria show on Friday, Nicki took to the stage at the Alexander Wang after party and performed a bunch of her best-known hits. At one point, she even invited Wang up onto the stage, where the designer busted some moves before bowing down to the emcee. Minaj also chilled with Rihanna behind-the-scenes.