In the early 80s I went to see Billy Squire and the opening act was Def Leppard with Steve Clark on guitar. Excellent concert but Poor Billy, he couldn’t hold a candle to those Leppard guys.
Great minds think alike. I too have seen each tour (with the same friend) since Presto & it was the ONLY band we dropped everything to see.
Rounding out the other two include Tom Petty & the Heartbreakers (2 tours with one including Bob Dylan) & George Thorogood.
All shows are still in my head as blessed lifelong memories.