Tom Petty Unearths Lost Song
It will feature on Wildflowers: All The Rest, which includes more unheard material written between 1992 and 1994. No release date has been confirmed.
Petty recently settled out of court with pop star Sam Smith after it was decided his hit Stay With Me sounds similar to 1989 track I Won't Back Down, co-written with Jeff Lynne.
Petty said: "I have never had any hard feelings toward Sam - all my years of songwriting have shown me these things can happen." It's available through digital retailers, and a teaser can be viewed here.
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