Notables:

1) Michael Jackson Bad Tour
2) Prince - "Love Symbol" Tour
3) Rock the Bells 2004 - Anaheim (Tribe Reunion, Xzibit, Jurassic 5 as headliners and there were liek 50k others)

(note: been to many others but most were only fair-to-middlin' experience wise)

The best was in 1994 at some hole-in-the-wall in ATL on Freaknic Weekend. The Lineup: Notorious BIG, Snoop, Wu-Tang. Seeing them all RIGHT when all their albums had first dropped (snoop, Wu) or about to Biggie was dope. I have never been in a place with that much weed smoke in the air. it was the livest crowd i've ever seen

as far as one's I regret missing I have 2:

1) Luther Vandross and Anita Baker joint tour
2) Prince when he did that 21-nights at the Forum in 2011
3) Anita Baker Farewell Tour