After rocking 'Walk' outside the Staples Center, the almighty Foo Fighters appeared near the end of the show for a second performance in tribute to dance and electronica music alongside Chris Brown, Lil' Wayne, David Guetta and Deadmau5.

Chris Brown was first to take the stage with electronic artist David Guetta all ready to accompany him. Brown came out in a Run DMC-like outfit with tons of autotune and electronic filters on his voice, keeping with the theme of celebrating electronic music. Lil' Wayne joined in for a short appearance, building on the rap / electronic performance.

After they finished their part of the performance, the camera panned throughout the crowd full of people with incredibly phallic glowing sticks and Deadmau5 ears to the Foo Fighters on the other side of the tent. They began playing their hit 'Rope,' inside a bright glowing box, which seemed like a completely separate performance until Deadmau5 was revealed within another glowing box next to the Foos.

After Deadmau5 went solo with his brand of dubstep, the camera panned to Dave Grohl in the audience bobbing his head in sync with Deadmau5's giant L.E.D. mouse head.

The 2012 Grammys have been all about the Foos, with two performances and five Grammys as of this posting. Will Foo Fighters rope in 'Album of the Year?' Stay tuned to find out.

Watch Foo Fighters, Chris Brown, Lil' Wayne, Deadmau5 and David Guetta Perform at the 2012 Grammys