Nicky Minaj Teams Up With Power Butts J Lo & Kim Kardashian & More! [Celebrity Twitterverse]

Lady Gaga continues to surprise with her red carpet arrivals, Nicki Minaj makes Neil Patrick Harris hungry, Kim Kardashian and Eva Longoria get Grammy-ready together, Justin Bieber tries to stay gracious despite walking away empty-handed, plus more celebrity reactions and pictures from the Grammy Awards 2011 in the gallery.