Gamers hoping to take on hard-rocking brothers Sam, Joe and Pete Loeffler in Halo 2 should visit this site to sign up for the contest. One hundred lucky winners will be chosen to get a chance to play the band on December 20; while 10 runners-up will win a copy of the band's latest album, "This Type of Thinking Could Do Us In."

Xbox Live's "Game with Fame" gives game fans the opportunity to play on Xbox Live against some of today's hottest stars. Past "Game with Fame" celebrity players include The Strokes, Hoobastank and Buffalo Bills' Running Back Willis McGahee.