The Mamas and the Papas created beautiful Folk Pop harmonies that made them accessible to both the mainstream and counter culture of their day. California Dreamin’ itself is good enough for them to be inducted.

Inducted in 1998. From New York City, New York, U.S.A. 

Martha and the Vandellas rose to fame under the Motown label with a more R&B driven sound then the other girl groups on their label. As such, their music was some of the finest Rock and Roll to come out of Detroit.

His skills were massive and his contributions to Motown and music in general are undeniable. Any list of the top ten musicians in the age of Rock and Roll would have to include Marvin Gaye on it.

Metallica may not be the first Heavy Metal band to reach epic proportions, but Metallica may have reached the biggest heights. The question is whether their induction will pave the way for other deserving Metal acts.