A song you've seen performed live, or would really like to see performed live?

I'd looked forward to the dual Live Aid concerts back in 1985 for months. When the big day finally came, I bought way too much cheap beer, as was my habit for too many years. When I decided it was time to go get even more, my wife took my car keys and locked the door to the house - while I was on the porch. It's funny that of all the regrets I have about life before getting sober, missing that concert is one that always comes to mind. I haven't had a drink in over 17 years and i sure wish I could get in a time machine and go back to the day of Live Aid and make different decisions.