Das cool :3 I agree, it's wicked awesome seein bands/singers you <3 in concert, even if you do sit far away... the moment is still magical XD Was it your first concert?
Not so sure about individual singers, but my all time favorite band is the Beatles, and after them, well... I have a lot of 'favorites' so I don't know if I should try to list everything

I'm not too particular about my music.
As far as seeing people/bands live, I've seen Ringo Starr, Fall Out Boy, Brand New, the Used, Hawthorne Heights, From First to Last, The Academy Is..., John Mayer, Ben Folds, the Hush Sound, +44, Paul Wall, Thrice, Street Drum Corps, Straylight Run, Vallon, A Drop Dead Star and Lannen Fall... and a bunch of really popular bands/singers @ a Kiss 108 radio concert... forget exactly who... I know I'm forgetting a couple but idr

And note that these aren't all individual concerts, I'm including bands that weren't the 'main attraction'.
I <3 concerts. Yaymoshpit<3
My dad hath promised me that if/when Paul McCartney ever happens to play in Boston again, he'll get us tickets :3 We just saw Ringo in July and it was... ohmahgah *melts* Imagine it - SEEING A REAL LIVE BEATLE. WTFDFIGHNSJKDFJS I think my soul died a little from OD'ing on happy.