One sign of a great classic rock artist is other musicians covering their originals. Tom Petty’s music has been recreated by so many musicians from a wide variety of genres. His songs have been covered by Johnny Cash, Def Leppard, and Poison, just to name a few. Even Miley Cyrus and Taylor Swift have covered his songs. Check out Stevie Nick’s version of “Free Fallin.” Rest in Peace, Tom Petty! You are sorely missed.