Let's not act like the Jonas Brothers fans are the only ones to ever act teenybopperish over a celebrity. I'm sure many here have, at some point in time. So who was yours?
Mine was NSYNC. Still like them to this day. Backstreet Boys fans, you are still our mortal enemy lol

Khat, sure you can, but for girls, its VERY normal, and the craziness fan in them will pass, proabley as they enter middle or high school. Every generation has them. If you have a daughter, very good chance she will to, just with another celebrity.
Personally I think its adorable.