Actress Reese Witherspoon; actor Fred Armisen; Rick Ross performs with The Roots.

Actor Liam Neeson; actors Fred Armisen and Carrie Brownstein.

Actor Liam Neeson; actor Fred Armisen; Carrie Brownstein performs; comedian Simon Amstell.

Jimmy and Fred Armisen spill their deep, dark secrets after getting trapped in The Tonight Show's freezer, then Jimmy catches up with Armisen, Chloë Sevigny and Michelle Zauner of Japanese Breakfast before enjoying a musical performance by Måneskin