Whether online, in record stores, in music magazines, awards, or even daily fan conversation, the terms such as “underground” and “alternative” are increasingly used for the classification of music releases. Either used in combination with other genres to describe a certain music style (“alternative rock”; “underground dance music”) or even functioning on their own, the underground and alternative are understood as self-evident by many. The common definition is simple: alternative/ underground is simply not a part of the mainstream. In academia, however, as early as 1996 popular music genres (as a whole) were called under scrutiny for their unstable boundaries, constructed, marketing-oriented and agreement-based nature. [1] As umbrella terms often encompassing a variety of genres based on broad criteria, the terms “underground” and “alternative” can be questioned even more so.