Watch Kendrick Lamar Perform A New Song, “Untitled 2”

Last night, Kendrick Lamar appeared on The Tonight Show Starring Jimmy Fallon to perform an impassioned new song called "Untitled 2." Presumably a follow-up to "Untitled," the track he performed on The Colbert Report last year, "Untitled 2" is a whirlwind journey dealing with similar themes as To Pimp a Butterfly; it starts out pretty mellow before escalating in its second half into something much more raw, and undeniably powerful. Watch it above.