Mike Campbell's gritty, singing lead on Tom Petty's 1979 breakthrough — the part that finally 'just fit that track perfectly' after weeks of trying every guitar. The hero is his modified '72 Telecaster 'Red Dog': two humbuckers plus a Tele bridge single-coil and an onboard 'Destruct' boost that, in his words, lets you 'really knock them down.' Tracked at Sound City and Cherokee by Jimmy Iovine and Shelly Yakus, it's a small cranked Fender pushed into light breakup, sitting in a lush late-'70s LA studio plate.