2009 and features "Top 40" hits aimed at family audiences, using the full band play style of Guitar Hero 5. The game was also developed for the Nintendo DS, using the Guitar Hero On Tour Guitar Grip, a new "drum skin" to fit the DS Lite, and the DS's microphone to support the full band experience. Musician Taylor Swift appears as a playable character in the game, as do the members of No Doubt. DJ Hero was announced by Activision in May 2009. Prior to the announcement, the company had purchased FreeStyleGames, a small developer of music games, to help produce localized downloadable content for Guitar Hero games and a then-unannounced music game, later revealed to be DJ Hero. DJ Hero uses a special turntable-based controller for players to perform with on various song mixes in the game. The game also incorporates the use of a Guitar Hero controller on ten specially arranged tracks; Bright suggested that future Guitar Hero games after Guitar Hero 5 could include the use of the turntable control. A sequel, DJ Hero 2, was officially announced in June 2010 for release in the last quarter of 2010, featuring more than 70 mashups from over 85 artists. The game includes several new gameplay modes, including an "Empire" career mode, head-to-head DJ battles, social multiplayer modes, and a jump-in and out Party Play mode similar to Guitar Hero 5. The game also includes more vocal options for singing and rapping to songs, and a freestyle mode for players. Portable versions Guitar Hero: On Tour was released on the Nintendo DS hand-held system on June 22, 2008. The game includes a peripheral, dubbed the "Guitar Grip", a rectangular device that fits into the second slot of the Nintendo DS or DS Lite. The peripheral only features the first four fret buttons and a strap so the Nintendo DS can be held sideways comfortably for play. The game also includes a guitar pick shaped stylus for use with strumming in the game, which players move across the touchscreen. Guitar Hero: On Tour was developed by Vicarious Visions, who also ported the Guitar Hero games to Nintendo's Wii console. A sequel, Guitar Hero On Tour: Decades, was released in November 2008, featuring music spanning four decades. A third title in the series, Guitar Hero On Tour: Modern Hits, was announced following various rumors of its existence, and was released in