But no, because, led by vocalist and songwriter and flautist extraordinaire Ian Anderson, they shot to the upper reaches of the 'hit parade' with a lyrical song in 5/4 time. That was unheard of, most R/R music is 4/4 with occasional waltz time (3/4) and the raw stuff in 2/4.
But it was no fluke because Anderson has subsequently enjoyed an illustrious career and proved his musicianship with jazz and classical as well as performing an interstellar duet with an astronaut! https://en.wikipedia.org/wiki/Ian_Anderson
A late addition (second above) was Boris Dancing! Too good to resist even if it is about Boris Yeltzin and not 'our' Boris.