Adele was on The Tonight Show recently, where she teamed up with Jimmy Fallon and The Roots to perform her hit song "Hello" using classroom instruments as a web exclusive. To close out the show, she sang "Water Under The Bridge." Check both below, via YouTube.
Adele, The Roots, and Jimmy Fallon Perform "Hello" on Classroom Instruments
Adele Performs "Water Under The Bridge" on The Tonight Show