I was thinking about this last night....I realise I have been to several concerts so far in my life and all of them are from different genres o_o! Here are the concerts I have attended (with approximate dates and locations):
01)
Arturo Sandoval, 1998, Radford, Virginia, USA - I got to meet him after the concert, shook his hand, and he autographed my ticket

Also gave me good trumpet advice.
02)
Wynton Marsalis, 2003, Boone, North Carolina, USA - Met him, took a picture with him
03)
American Idol (second season concert), 2003, Charlotte, North Carolina, USA - Went to the concert mainly so I could accompany my sister, haha.
04)
Josh Groban, 2004, Washington, DC, USA - I went to the concert with my friend Katherine as a late birthday gift for her. Josh Groban was amazing in concert!
05)
Ayumi Hamasaki, 2004, Tokyo, Japan -

Great seats! My friend Bradley and I were pretty close to the stage; Ayu was soo close to us at some points! I screamed like a fangirl...
06)
Puffy AmiYumi, 2005, Washington, DC, USA - Went with my friend Bradley to the show; a lot of people there were there because of their Cartoon Network show, Go! Go! PuffyAmiYumi (or something)...Bradley and I tried waiting outside afterwards to meet Ami and Yumi but they kind of ran out

Wahh. They waved at us though....
Anyway, I'm curious about others' concert experiences.

Please do share ^^