When she released her brilliant debut album Devotion last year, some of us started wondering when the British soul singer Jessie Ware would make her way to American shores. And even though Devotion still isn’t out in the U.S. (it arrives in April), Ware’s now enjoying the shittiest part of the East Coast winter. Last night, she made her American TV debut, singing her shattering single “Wildest Moments” on Late Night With Jimmy Fallon while the Roots backed her up beautifully. And Ware was born for this. While she’s singing, she absolutely casts a spell. And as soon as she’s done, she breaks into the greatest giddy, relieved grin; it’s awesome. Watch it all below.

Devotion is out now on PMR, and Ware’s American EP You’re Never Gonna Move is out now on Island. But what was she wearing, though?