Activision announced today that Guitar Hero On Tour: Decades, the stand-alone sequel to Guitar Hero: On Tour, has shipped to retailers. Developed by Vicarious Visions exclusively for DS, Guitar Hero On Tour: Decades features a number of enhancements, including the ability to stream songs with the original Guitar Hero: On Tour. Fans can play through any one of three different solo career paths, each with their own story: Lead Guitar, Bass Guitar, and Guitar Duel. Players can rock out to the largest set list in a handheld game to-date with 28 master tracks and more than 60 songs that can be streamed with owners of the original game.