Garratt is the recipient of the Brits 2016 Critics' Choice Award.
"I am so humbled," he says. "To have been given this award is truly mindblowing, considering I am one name in a hugely exciting time for music in this country. Thank you to everyone who voted, it means so much to me."
The singer will release his debut album, Phase, in February (16), the same month as the BRIT Awards in London.
He will also be supporting Mumford & Sons on their U.K. arena tour.
The Brits Critics' Choice Award is chosen by a panel of music industry experts. Artists eligible for consideration must be signed to a record label but yet to release a debut album.
Adele won the inaugural trophy in 2008.
Garratt will be presented with his new award during The Brits Are Coming nominations show on 14 January (16).