Bastille covered Green Day’s big hit “Basket Case” for an episode of The Tick and Billie Joe gave his stamp of approval of the cover. You can check out the cover below.

Bastille frontman Dan Smith tells NME:

“We were asked to do it, and we were obviously tentative about it we absolutely love Green Day, and it feels very odd covering a song that’s a classic. So we just thought ‘if we’re going to do it, let’s have fun with it, let’s do something that’s hopefully respectful to the original but completely a million miles in the other direction. So it’s got no band instruments, just live strings, live brass and classical percussion.

“Hopefully it’s respectful and captures the spirit of the song, but the main thing is that Billie Joe gave it the thumbs up. It was like handing in your coursework and being terrified of the result, but we got the thumbs up from him. Apparently they’ve never approved a cover before.”