The 72-hour event gives players the chance to prove their axe grinding skills and includes a Play & Win Sweepstakes that offers gamers who register and play, the chance to win a multitude of prizes. Before the big game, fans can test their talents against Neversoft, developers of Guitar Hero III: Legends of Rock, from 12 – 4 p.m. PST on Sunday, February 3.

Some of the prizes up for grabs include Microsoft points, Guitar Hero Gear and an Xbox 360 wireless guitar faceplate signed by Slash. One lucky grand prize winner will take home the Ultimate Home Gaming Center, which includes an LG 50" 1080p Flat-Panel Plasma HDTV, an Xbox 360 Elite and a BoomChair - Wi-FX Wireless Gaming Chair.

Fans can register for Guitar Hero III: Legends of Rock – Rock Your Party Weekend on Xbox LIVE by downloading the Guitar Hero III: Legends of Rock GamerPics exclusively through Xbox LIVE Marketplace for the Xbox 360. Players can also register by visiting www.xbox.com/rockyourparty, where they can get additional details regarding terms, conditions and official rules.