great question. I’ve got 3:
1979 - Southside Johnny opened for J. Geils Band at the Aragon in Chicago. Honestly, my buddies and I were there for Southside, so we actually left during J.Geils’ set. We were pretty stoned!
2006 - The Raconteurs opened for Dylan at the Patriot Center in Fairfax, VA. My wife and I didn’t even know the Raconteurs were playing; we sat down late after grabbing a soft pretzel in the concourse since we’d both come straight from work. They launched into “Steady as she Goes” right after we sat down - cool! However, while Dylan’s voice was tough, that band! OMG! Blew the Raconteurs totally out of the water!
2012 - Arctic Monkeys opened for The Black Keys at Merriweather Post Pavilion in Columbia, MD. We learned that day that we’d been mispronouncing the band’s name for years. It’s actually “the aaaktik muunkees”. My middle son believes there are very few true rock n roll stars left, and two of them are Jack White and Alex Turner.