I remember when N'Sync and Backstreet Boys were the shit, and I was in Junior High (I think , or close to.o_o). I didn't like EITHER one of them. I had pretended to like them at first, because I was already weird enough. I thought I'd get a few brownie points by making a decision between two bowls of turds. I picked N'Sync. To show everyone how much I liked them, I bought a calendar....and I didn't even hang it up. lol
Truth is, all 'pop sensations' eventually fade. Justin was really young when he started so he has SOME years to go, I think, before the flame for him is turned down. I think he'll always be around, since most of them are still recording ; but it wont be as obvious. He wont always be on the front page. His name will appear somewhere and people will go, "Heh, look at that, he's still at it." I love hearing, "I thought (s)he/they was/were dead!" That'll always be my favorite line when people find out that old pop sensations are still out there trying to do their thing.