The Flaming Lips are never content to just rest on their discarded bunny-suits and plastic bubbles, not when there are new people being born every day who are just waiting to have their world-views smashed with naked music videos and explicit Instagram accounts. To further their goal of bringing acid-tinged psychedelic pop to the masses, the Lips enlisted Yoko Ono to perform with them on Late Show with David Letterman last night, which you can see below.

Leave it to Letterman to perfectly sum up their performance of Ono's anti-war song “Chesire Cat Cry:” “It’s fun when you leave the theater humming the music from the show.”

But wait, that's not all: Ono also showed up at Terminal 5 last night to join the band during their headlining set (following performances by Sean Lennon's band The Ghost of a Saber Tooth Tiger and the excellent Australian group Tame Impala).

Hey, regardless of her speak-singing atonality, credit where credit's due: you would be lucky to be half as cool as Ono when you hit 80.