It might have been a Top 40 hit in the USA (it actually reached No. 11, and No. 5 in Canada), but it only made No. 51 in the UK. As for the two million downloads, I have no idea where that came from.
No one in the room where I was asked this question had ever heard of it. Then, as is the way with these things, I heard it on the radio about a week later! Can't say it was at all familiar though.
Turns out it was this band's biggest hit, and their only UK chart entry. They're still chugging along in 2017, albeit with only two of their founder members – Rich Williams on rhythm guitar and Phil Ehart on drums.
© Macclesfield Quiz League 2017