John McCullagh with A Celtic State of Mind – “When you see those green and whites run out, it just hits you in the heart like a song.”

Back in 2013, Scottish music mogul Alan McGee spoke about discovering his latest prodigious talent – 14-year-old Doncaster native, John Lennon McCullagh. At just 15, John became the first signing to McGee’s 359 Music, who released his debut album North South Divide on 14 October 2013...