Weezer's classic 1994 track "Buddy Holly" already threw back to the good ol' days with its Happy Days-inspired music video.
But Jimmy Fallon took the song even further back in time with his barbershop quartet, The Ragtime Gals, on The Tonight Show.
Fallon always puts a little spin on his ragtime renditions, and Tuesday, the late night show host invited Weezer themselves to join the seven-piece a capella shindig.
"Buddy Holly" works incredibly well here, and sits up there with Fallon's barbershop versions of Bruno Mars' "That's What I Like" and Sir Mix-a-Lot's "Baby Got Back."
