 In the first two games and the 2007 expansion Guitar Hero Encore : Rocks the 80s , the majority of the songs on the main career mode set lists are covers of the original song ; for example , a song may be presented as " Free Bird as made famous by <unk> <unk> " . Guitar Hero III : Legends of Rock introduces a much larger range of original recordings , and World Tour featured a setlist that contained all master recordings . The covers throughout the games are mostly recreated by <unk> Sound who has worked before to create songs for <unk> , Dance Dance Revolution , and Karaoke Revolution , making small changes to the guitar portions to make them more adaptable for gameplay . Almost all of the <unk> bonus songs are songs performed by the original artist for the game ( the only exception is the song " She <unk> the <unk> " by The Stone Roses , which is featured in Guitar Hero III : Legends of Rock ) . 
