King Crimson

One of the most popular yet niche groups of all time. It seems like an oxymoron, but I say this because despite their undeniable fame and influence, they remain a band for relatively few chosen ones. This is because they have never fallen into the mundane, they have never betrayed their ideals, and in 40 years of career, they have always been able to change form without mutilating the substance. Undoubtedly, Robert Fripp is the Crimson King, and as a result, he is a genius.