Watch Sam Smith Sing “I’m Not The Only One” On The Tonight Show

It’s pretty crazy how big Sam Smith has gotten in the past year. He made his late-night TV debut back in January when Jimmy Fallon was still behind the Late Night desk. Smith wasn’t even performing solo then — he was just there to support Disclosure on “Latch,” which was over a year old then and is even older now. Smith’s had a lot of late-night TV performances since then, so his take on his latest single “I’m Not The Only One” has the breezy quality of a trained professional. Watch below.

In The Lonely Hour is out now on Capitol.