Born and raised in Bedford, the 21-year-old’s childhood was a fairly typical one. He played football, went to school, got a moped at 16 and “was cruising with that for a bit.” Aside from an MP3 player his mate’s brother loaded up with grime, music was never a big part of his life growing up. Until, that is, he had a little too much to drink at a party, and demanded that everyone listen to him performing ‘Seaside’ a cappella. “I was just going around like, ‘Oi, listen to me…’ just being an annoying guy,” he says now - but his performance, bolstered though it may have been by a generous dose of Dutch-courage, was clearly impressive. His friends, unaware before that night that he could even hold a tune, roped him into joining their A Level band, where he discovered an untapped knack for performance.
With Something In The Water’s success, the ball was well and truly rolling. Next came a Chase & Status collaboration, All Goes Wrong, which might never have seen the light of day were it not for Grennan’s sheer force of will. After a fruitful writing session, the electronic duo were unsure whether or not to release the resulting song. Grennan, with the unabashed self-belief only a 21-year-old could have, told them, “Boys, this is a banger.” He was right, and a spot on the BBC’s Sound of 2017 longlist, as well as a sold-out UK tour, shortly followed. Now, as he prepares to play his biggest headline show to date at London’s Union Chapel in April, there’s no stopping him.