Buttrock

[Donald Trump]

1)A term to identify a band trademarked with cheap, unoriginal song lyrics; the vocalist hiding his lack of vocal talent by producing a deep and raspy voice (i.e. Nickelback, Creed).
2)A term to identify any song composed by a buttrock band or any individual song which possesses buttrock qualities (see def. 1)

A term to identify anything, absract or concrete, that is distasteful, poorly concieved or overtly offensive.

[Rihanna]

Any of the indistinguishable music of Nickleback, Hinder, Daughtry, Default, etc...
A genre of music where every song sounds exactly the same