Remain Underground is a special collector's edition of a homonymous underground concert that brings together the main names of grunge around the principles, ideas and themes of this subculture. Grunge is a musical style that developed around 1992 in Seattle, based on self-production, independence, and opposition to any corporate power structure. It expresses itself as a very dynamic style that embraces the themes of apathy, loneliness and boredom. For Grunge musicians such as Nirvana, Pearl Jam, Alice in Chains, Mudhoney and Soundgarden, gathered here, to remain original and underground was very important, artists refused everything that was generic, common and accessible, thus arising the name of this concert . This edition counts on a CD-Rom that gathers the songs played in the concert, an exclusive magazine and unique posters of each band.