Why is Vanilla Ice considered a one-hit wonder? He had more US top ten hits than the freaking Who, for god's sake!
That sounds less impressive when you do the research and discover that the score is Vanilla Ice 2 ("Ice Ice Baby" and "Play That Funky Music"), The Who 1 ("I Can See for Miles").
I blame Small Reference Pools. Honestly, how many of his songs can you name that aren't "Ice Ice Baby"?
You'd be surprised at how many famous acts only had a single hit. Technically, Jimi Hendrix and Iggy Pop are also one hit wonders.
Justified in Hendrix's case, seeing as how he was dead at 28.
It's probably also the internal small reference pool. The Who had songs that, while not hits, are memorable and notable. VI... not so much (unless you're already a fan).