[Photo by: Tom Petty/Sam Jones; Fall Out Boy/Brendan Walter]

Have you ever heard a song and wondered what it would sound like if another band had written it?

YouTube user Alex Melton has. Not only that, but he specifically wondered what a Fall Out Boy version of Tom Petty's “Free Fallin'” would be like.

Read more: Fall Out Boy’s llama takes over pop album covers, and it’s incredible

Because the band have never covered the song, Melton went and did it himself. It sounds pretty cool, and you can listen to the version below.

Just a heads-up: Don't expect it to sound like M A N I A. The musician states in the title that he imagined an “old” Fall Out Boy interpretation of the song.

Give it a listen, and let us know if you think the cover could have been on a B-side of FOB's Take This To Your Grave:

Melton also reimagined the song in the style of blink-182 (“na na na” included):

And if you ever wondered what it would sound like if the Story So Far reimagined “Free Fallin',” here it is:

Watch more: APMAs 2016: PATRICK STUMP of FALL OUT BOY wins Best Vocalist