Jason Paul McCaslin, better known as "Cone," is the bass guitarist and backup vocalist of Canadian
punk rock band
Sum 41 Born in Toronto, Ontario, on September 3, 1980, and he joined the band as the last member of its current lineup in February 1999, replacing Mark Spicoluk. Sum 41 was signed by Island Records only months after he joined. McCaslin began playing bass when he was 14 as a member of a grunge garage band (Second Opinion) with
Avril Lavigne's former drummer Matt Brann and other neighbors. He was the last musician to join, and because the other band members …
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