Backstreet Boy's son is not your average celebrity kid
Baylee Littrell was 9 when he started opening arena shows around the world. OK, it helped that his dad, Brian, was a member of the headlining band " Backstreet Boys. "Baylee would do two songs," his mom, Leighanne, tells The Post. "He would ride his scooter to the stage, sing, scoot out and go play...