Are they less rock'n'roll than Neil Diamond?
Neil Diamond is not Rock 'n' Roll. Neither are the Beastie Boys.
Neil Diamond is Pop. The Beastie Boys are Rap. Not Hip Hop but Rap. Much different.
Rush can be said to be 'not Rock 'n' Roll' but they are far closer to it than either Neil Diamond or The Beastie Boys.
And BTW...I love "No Sleep Til Brooklyn.". I like "Intergalactic" too.
"Eeeeeeeeeuuh...drop?"