Sam Smith’s Pipes Smoothly Blew the Roof Off of Letterman Last Night: VIDEO



Continuing to take the nation by storm, British singer-songwriter Sam Smith appeared on The Late Show with David Letterman last night for a performance of his single "Stay with Me".

Forecasters say that Smith's new album In the Lonely Hour could sell more than 150,000 albums this week, probably not enough to top Lana Del Rey's Ultraviolence, but a huge debut nonetheless.

Watch Smith on Letterman, AFTER THE JUMP...