Rapper Hammer (L) and singer PSY perform onstage during the 40th Anniversary American Music Awards held at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California.
{"Image ImageDescription": "LOS ANGELES, CA - NOVEMBER 18:  Rapper Hammer (L) and singer PSY perform onstage during the 40th Anniversary American Music Awards held at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California.  (Photo by Lester Cohen/WireImage)", "Image Copyright": "2012 Lester Cohen"}