Chapter one: the Toronto formation (1953)
The Diamonds formed in Toronto's street-corner harmony scene, singing Mills Brothers and Ink Spots covers in the city's taverns — the pre-Yorkville club circuit. An American talent-show appearance brought the Mercury Records contract, making them the first Toronto vocal group signed to a major American label.
Chapter two: "Little Darlin'" (1957)
The breakthrough was "Little Darlin'": Somerville's authoritative baritone, the talking bridge, the famous ay-ay-ay ending — doo-wop perfection that hit #2 on the Hot 100, held off only by Buddy Holly's "Everyday." "The Stroll" followed, another top-five. Toronto kids, matching suits, American stardom — years before anyone coined CanCon.
Chapter three: the forgotten legacy
The British Invasion erased the doo-wop groups, and the Diamonds faded with the format. But the story matters: the first Toronto vocal group to top the American charts, the proof that the export pipeline worked before anyone named it. The Crew-Cuts cracked the door with "Sh-Boom"; the Diamonds walked through it. The first wave rolls on, largely unremembered — until now.
Why they matter
They were the first proof that Canadian vocal groups could conquer American charts — the forgotten first chapter of the export story that the Guess Who would make official in 1970.
Frequently asked questions
Who were the Diamonds?
A Toronto vocal quartet (formed 1953) — “Little Darlin’” (#2 US, 1957) and “The Stroll” made them the first Toronto vocal group to top American charts.
Why are they forgotten?
The British Invasion erased the doo-wop groups, and the bigger Canadian waves that followed overshadowed the first chapter.
What was Canada’s 1950s pop explosion?
The pre-rock vocal-group wave (the Diamonds, the Crew-Cuts) that proved Canadian acts could top US charts years before the CanCon era.