Tool are widely held to have been heavily influenced by King Crimson, with their vocalist Maynard James Keenan even joking on a tour with them that "Now you know who we ripped off.
Leta 2002 so se nekateri bivši člani King Crimson iz njenih zgodnjih zasedb združili v skupino 21st Century Schizoid Band, ki je igra skladbe iz njihovih prvih albumov.