'Tonight Show' Returns to L.A., Reprises "Going Back to Cali" With LL Cool J

Courtesy of The Tonight Show Starring Jimmy Fallon

Jimmy Fallon also did a "tight pants" sketch with Will Ferrell and Christina Aguilera.

The Tonight Show returned to Los Angeles this week and to celebrate, Jimmy Fallon remade LL Cool J's "Going Back to Cali" video.

LL Cool J made an appearance in the video, which also featured The Roots. Fallon drove around in a car singing about how he's "hostin', west coastin' " in the cold open to the show Monday.

"I'm back in town on the L.A. scene. I'll be telling jokes playing games with my guests," sang Fallon. "The party never ends, so tell your friends The Tonight Show's back in L.A."

Fallon had Will Ferrell and Christina Aguilera on as guests and the trio got together for a silly, retro "tight pants" sketch.

For good measure, Fallon also celebrated his L.A. return by jumping through a giant "Randy's Donuts" sign, flipping as he went through the hole of the donut.