Althia & Donna's "Up Town Top Ranking" from 1977 must be anothery. Jeez, talk about obscure. Luckily, A is the first letter in the alphabet and my books of British chart listings are all alphabetical.
Slightly out of the thread's timeframe, but anyway. A male vocalist hailing from Montserrat charted twice in Britain in 1984 and 1985. Who was it? I have to assume he has been Montserrat's only claim to British chart fame. 
As to the two most famous #2s - I can only imagine that Millie's "My Boy Lollipop" is one of them?

Slightly out of the thread's timeframe, but anyway. A male vocalist hailing from Montserrat charted twice in Britain in 1984 and 1985. Who was it? I have to assume he has been Montserrat's only claim to British chart fame. 
My list says he had a duet #1 hit with Siedah Garrett for two consecutive weeks (15 Aug and 22 Aug) in 1987.
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