671K views · 190K reactions | Adele joins Jimmy and The Roots in the Tonight Show Music Room to perform "Hello" with classroom instruments. | The Tonight Show Starring Jimmy Fallon | Facebook

607K views · 7.5K reactions | Jimmy and Adele go head-to-head in Box of Lies! #FallonFlashback | The Tonight Show Starring Jimmy Fallon | Facebook

1.8M views · 23K reactions | In honor of Sesame Street's 50th anniversary, Jimmy and Black Thought perform a rap with Elmo, Big Bird and friends. | The Tonight Show Starring Jimmy Fallon | Facebook

1.9M views · 42K reactions | Janet Jackson joins Jimmy and The Roots to perform her hit "Runaway" with classroom instruments. | The Tonight Show Starring Jimmy Fallon | Facebook

1.3M views · 3.5K shares | Jimmy and Kevin James show clips from their short-lived '80s drama, "Last Call Saloon," where they act out the fight scenes in slow motion. | The Tonight Show Starring Jimmy Fallon | Facebook

Ariana Grande and Jimmy Fallon deliver full-out performances of famous covers by Lady Gaga, Rosé and more on 'The Tonight Show.' | Entertainment Tonight

Watch Ariana Grande & Kelly Clarkson take on classic songs from Britney Spears, Whitney Houston & more on "The Tonight Show Starring Jimmy Fallon"! | E! News