Katy Perry will perform her new single “California Gurls” live at the 2010 MTV Movie Awards, as the network announced a number of additions to the June 6 telecast.Among the newly confirmed presenters are Paul Rudd, Jason Segal, Anna Kendrick, Christopher Mintz-Plasse, and Aubrey Plaza.The ceremony will also feature the five leads of Grown Ups: Adam Sandler, Chris Rock, Kevin James, Rob Schneider, and David Spade.Leading the way with six nominations is The Hangover, while New Moon and Avatar have five apiece.