London - Activision's (NASD: ATVI) "Guitar Hero: World Tour" sold 3.4 million copies in the U.S. last year, or twice as many as MTV Networks' (NYSE: VIA) "Rock Band 2," which moved 1.7 million units, GameSpot reported, citing new data from market research firm NPD Group. The report notes that "Rock Band 2" did not become available for the PlayStation 3 or Nintendo Wii until shortly before the holidays.

Los Angeles - Viacom's (NYSE: VIA) MTV is reportedly developing a reality show produced by Mark Burnett based on its forthcoming karaoke video game "Rock Band 2," if casting calls posted to Craigslist in Los Angeles are to be believed, Variety reports. "The creator of 'Rock Star' and 'The Apprentice,' Mark Burnett and MTV bring you the first show based on the new game 'Rock Band 2,'" reads the ad, which is looking for "four people to form their own band and show us their stuff live on stage for the chance to win the Ultimate Rock Band Experience."

San Francisco - Viacom's (NYSE: VIA) Harmonix game studio has partnered with on-demand 3D printing firm Z Corporation to offer players of its upcoming "Rock Band 2" the ability to order six-inch tall figurine versions of their customized musician avatars from the game, Wired.com reports. The $75 figurines will feature all of the customizations to body styles, faces, makeup options, hair styles and tattoos that users apply to their Rock Band avatars.

New York - The first officially released song from Guns 'N Roses fourteen-years-in-the-making "Chinese Democracy" album is set to debut in September, as a track within "Rock Band 2," the sequel to Viacom-owned (NYSE: VIA) MTV Games popular music game, The New York Times reported on Monday, citing anonymous sources. Such a deal underlines the influence that the new crop of music games can have on an artist's sales. A release date for the album -- some of whose tracks were recently leaked by a blogger -- has not yet been announced, but if the "Rock Band" deal pans out, it could signal that the full album will finally be released in the fall.