I thought Rick Astley was in his 20s when he was popular.
There has already been a nationally televised rick roll, and it was brilliant. http://www.youtube.com/watch?v=wL-hNMJvcyI
That was awesome.
Labrador Deceiver: You’re right. I thought he was still in his teens, but it turns out that he was 21 when he had his first big hit. Still, he fits in the category if we include people who had big followings from young teens and tweens.