The three strangers who randomly turned an acoustic performance into a viral sensation were invited to reprise their song on Jimmy Kimmel Live last night, and this time a few celebrities ended up joining in.

Kimmel denied any involvement with the video, saying he only found out about it because so many viewers tweeted him asking if he had orchestrated it.

"I would like to claim responsibility for it, but I had nothing to do with it," Kimmel told the audience before joining the jam session on a brass clarinet.

[h/t 22words]