In January 2015, it was revealed that Petty and Jeff Lynne would receive royalties from Sam Smith's song "Stay with Me" after its writers acknowledged similarities between it and "I Won't Back Down". Petty and co-composer Lynne were each awarded 12.5% of the royalties from "Stay with Me", and their names were added to the ASCAP song credit. Petty clarified that he did not believe Smith plagiarized him, saying, "All my years of songwriting have shown me these things can happen. Most times you catch it before it gets out the studio door but in this case it got by. Sam's people were very understanding of our predicament and we easily came to an agreement".