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By Kathleen Perricone

It’s been an incredible year for Sam Smith — between his own hit single, “Stay With Me,” and lending his voice to Disclosure‘s “Latch” — and he knows who to credit for his massive success.

In an exclusive video, the 22-year-old British singer expressed his gratitude to his dedicated fans.

“I just want to say a massive thank you for making me No. 1 in American Radio Top 40,” says Sam. “It’s unbelievable and it’s really … I can’t put into words what it truly means to me. Thank you for playing my record to all the radio stations, and thank you guys for listening and I hope you enjoy it.”

Download Sam’s debut album, In the Lonely Hour, on iTunes now here!