Justin Timberlake & The Roots Perform Hip Hop Medley on Jimmy Fallon (WATCH!)

Justin Timberlake appeared on Late Night with Jimmy Fallon last night, and he wasn’t just there to promote his new movie The Social Network. Backed by Late Night house band The Roots, the pair sang a medley of hip hop songs, taking viewers through the history of the genre with Sugarhill Gang, The Beastie Boys, Jay-Z and even Soulja Boy. Check it out:

Sigh. As if Justin Timberlake wasn’t adorable enough just sitting in that chair…

The Social Network hits theaters tomorrow, October 1!