Definitions by rockout-

sonisphere

An absolutely INSANE festival which is touring around the summertime. Metallica, A7X and BFMV are among the headliners so its going to be awesome (:

www.sonispherefestival.com

"Hey, you got your tickets for Sonisphere yet?"
"OMG yeah, it's gonna fuckin' own!"

sonisphere by rockout- March 15, 2009