+1

Beat me to the punch - the most glaring omission.

My father served two tours. No drug problems, but definitely an alcohol issue, and was belatedly diagnosed with PTSD. He likes telling some of the camaraderie stories, but then gets a few beers in him and starts getting emotional.

Ha! Given the comments here so far, seems like U2 is a popular answer for the afterthought headliner. I've nothing against them, just find them a little dull and too safe.

I went to a U2 concert in the early 90s just to see their opener: Primus.