He was one of the foremost tunesmiths in the history of rock. She's a vocalist, lyricist, and style icon who found international acclaim in the mid-2000s with an optimistic pop anthem tailor-made for graduation ceremonies. I'm not sure if anyone's ever considered bringing their music together before, but some of Tom Petty and Natasha Bedingfield's greatest hits have quite a bit of stylistic and structural overlap.

Extra special thanks to Meb Themes, who posted a comment on a YouTube video of Petty's "Don't Come Around Here No More" which pointed out similarities with Ziggy Marley's "Believe in Yourself" (better known as the theme song from the animated series "Arthur").

Here's a complete list of all the audio sources I used:

Tom Petty - Free Fallin'
Natasha Bedingfield - These Words
Natasha Bedingfield - Unwritten
Tom Petty - Wildflowers
Tom Petty and the Heartbreakers - Don't Come Around Here No More
Ziggy Marley and the Melody Makers - Believe in Yourself (Theme from "Arthur")
Tears for Fears - Break It Down Again ("Worldbuilder" Soundmark)