Access Exclusive: Inside Katy Perrys Cosmic AMA Rehearsals

First Launched: November 19, 2011 4:39 PM EST Credit: Getty Images Caption Katie Perry creates stage within a concert inside the Rock in Rio Festival on September 23,2011 in Rio p Janeiro, BrazilLOS ANGELES, Calif. -- When Katy Perry takes happens at Sundays American Music Honours in La, its apt to be truly an out-of-this-world experience. Access Hollywood has exclusively discovered that Katy will probably be undertaking an acoustic version of her song, One Which Got Away. Not merely will Katy give you the vocals, but spend be playing playing the guitar herself, an origin has revealed to get into. She sounds fantastic, the foundation told Access getting seen Katys AMA testing. [She's revealing her talent just like a music artist. For happens, Katy works in the cosmic setting around the circular platform in the middle of happens, the foundation added. The set will probably be full of laser effects together with a big screen behind her filled with asteroids and stars. Besides her performance, Katy may also be up for 3 honours on Sunday, including Artist of year. The 39th annual American Music Honours will probably be held on Sunday, November. 20 within the Nokia Theatre in La. It'll air live at 8 PM on ABC. Copyright 2011 by NBC Universal, Corporation. All rights reserved. These elements is probably not launched, broadcast, rewritten or redistributed.