I really enjoy watching a Justin Timberlake performance.  Can you tell me more about him?
Of course, Timberlake is one of my favorite artists. He rose to prominence in the late 1990s!
What was the boy band he was is in before? 
Well I believe it was NSYNC. it paved the way for his career since it was one of the most popular boy bands of the time
What are his most popular single songs since he went solo?
His singles Cry Me A River and Rock Your Body are his most popular songs. I personally don't care for them and find them too mainstream