Gary said:
Procol Harum - A Whiter Shade of Pale.
Great song but that group is not a one-hit wonder by any means...Procol Harum had lots of great tunes & albums and is still touring today....
"Whiter Shade of Pale" was of course Procol Harum's biggest hit, in the summer of 1967.
Their next single, "Homburg" a few months later did okay. Moderate-sized hit.
Then their next several singles through 1971 were not hits at all. At least not "Top 40" radio hits. They were popular on FM radio to various degrees, though. Some of these included "Quite Rightly So", "A Salty Dog", "Boredom", "Whiskey Train" and "Simple Sister".
Then...another hit! In 1972 they did very well (top ten on many charts) with a live version of an older song, "Conquistador".
Unfortunately, no more big AM radio hits for them after that.
I liked their 1973 single "Bringing Home the Bacon" a lot and bought the 45 while it was new, but my purchase of one copy didn't help to make it a hit.
The rest of their singles through the late 1970's again got FM radio play here & there, but not "Top 40".
Some of these were "Grand Hotel", "Nothing But the Truth", "Pandora's Box", and "Wizard Man".