Where did your childhood go?
The Backstreet Boys just celebrated their 20th anniversary.
Getty / Denis O'Regan
Which is nothing compared to New Kids On The Block, who have been together for 30 years.
Getty / Denise Truscello
And this is how old they are now.
Getty / Richard E. Aaron
Mariah Carey won her first Grammy 22 years ago.
Getty / Time Life Pictures
