Oh man. I didn't realize how many concerts I went to until I started counting them in my head and remembering...
First concert: I believe it was the Beach Boys after a San Diego Padres game in SD.
Others: Metallica(few times), Suicidal Tendencies, Alice in Chains, Yanni, Rush(few times), Alman Brothers, Tom Petty, Duran Duran, Terence Trent D'Arby, Aerosmith(couple times), Collective Soul, Type O Negative, Violent Femmes, Candlebox, Weird Al(couple times), Moody Blues, AC/DC(couple times), Pretenders, Chicago, Doobie Brothers(couple times), Pearl Jam.
I know there are a few others too but I can't remember the names. You know how you go to most concerts and one or two little bands will open for the headliners. Those are the ones I can't remember. A few of the ones above were at the same concert. Back in the day, I used to win concert tix all the time from one particular radio station. I don't know if anyone else ever called in or I was just quick on the speed dial, but most of the time I had to wait my 30 day period before I could win something again. It was always concerts, CD's, or cash. I've never been able to get through to a human being where I live now.
Forgot to add the most important one! Saw Pink Floyd at Mile High Stadium right during the middle of a District Convention weekend. All of the elders warned the younger folks to not go since the DC was that weekend. Three from my hall went. I heard of countless others going too but didn't see anyone I knew.