I'm a fan (and you should be too) because ever since I was five years old, their music has meant everything to me. The guys have been the best of rolemodels and I adore every single one of them.
They have been a huge part of my life and I will never stop listening to their beautiful music!
I remember when they were in Globen during the Millennium-tour, I was 12 years old and my dad went to the concert with me and my younger brother. My dad thought I was crazy! I was standing on the chair, crying my heart out. I was so happy and I couldn't bielive that my five favourite people in the world was standing so close to me. And when they sang "The One" I honestly thought Brian was singing it to me, and that he meant every word of it 
Haha I don't think anybody has any idea of how inlove I was with Brian. When I was in 5th or 6th grade, my teacher (who knew about my crush), came up to me and told me that she had heard that Brian was getting married. My whole world fell apart and I was actually lying on the ground, crying like a baby! I don't think I've ever been so heartbroken again.
Another time, outside of the Cheiron-studio when I was 13 I think, Kevin was inside, recording. His friend and bodyguard was having a cigarette outside and I walked up to them and asked them to give Brian a note from me. Haha it actually said "I Love You Brian" and then my cellphone nr. Haha they thought it was hilarious and asked me if I knew what love really was. "Of course", I said. And they told me that they would go in and get Kevin if I could give them a good explanation. Wich I did. But instead of Kevin coming out, I got in 
Everytime I hear their music, watch a videao or just think about them (and thats often), I get goosebumps. So many memories, and so many years of pure love.
I was a bit crazy when I was younger, kinda like a stalker
I'm 20 now, and I don't like bothering people, but honest to God; I'm gonna make sure that I'm partying with them after the concert on the 14th of April. I think they would enjoy it as much as I would- we would have a blast! Too bad I don't have tickets to the soundcheck though 
Oh well, I will see the beautiful creatures at the concert, standing right under their noses 
There is no band like the Backstreet boys, and THAT is why I've been a huge fan of theirs for over 15 years.