The wildly popular "Guitar Hero" video game franchise has a new, more ambitious goal: It wants to help you record original music and share it with other fans around the world. "Guitar Hero World Tour," the fourth major installment in the gaming series, hits stores Sunday, October 26. Unlike past "GH" games, which came only with a guitar-shaped controller, "GHWT" also includes a drum kit and microphone, so gamers can tackle bass, vocal and percussion parts, too. The game's new studio mode will allow players to use the instrument controllers to record music tracks. Through an online service called GHTunes, players also will be able to upload their songs, download others or collaborate to create music together.