" If you're still doing this in your 70s you're even cooler than you were 20 years ago. Look at Aerosmith, look at the Stones, look at McCartney," Def Leppard frontman Joe Elliott says, "There's a ...

(L-R) Joe Elliott and Phil Collen of Def Leppard perform onstage during Radio 2 In The Park at Hylands Park on September 7, 2025 in Chelmsford, England. (Photo by Katja Ogrin/Getty Images) While ...