After The Jayhawks opened some shows for Tom Petty the riff from "Waiting For The Sun" showed up as "Mary Jane's Last Dance".
The Replacements also opened shows for Tom Petty and the phrase "a rebel without a clue" from "I'll Be You" turned up in Petty's "Into The Great Wide Open".
If you're a band from Minneapolis don't open for Tom Petty, he'll plagiarize you.