Releasing these screenshots, Activision celebrates the impending release of Guitar Hero: On Tour for the Nintendo DS. The game will be sold together with a Guitar Hero Guitar Grip peripheral that fits into the DS and a unique Guitar Hero pick-stylus. Due to ship this summer, Guitar Hero: On Tour is being developed exclusively for the Nintendo DS and even features a co-op and a battle system, as well as six characters and lots of customizations options. Check the press release for more details.