• JAYDEN & SEAN PRESTON FEDERLINE  photo | Kevin Federline

Credit: X17

Published: Thursday September 01, 2011 06:00 AM EDT

2011

JAYDEN & SEAN PRESTON FEDERLINE

Britney Spear's baseball boys Sean (left) and Jayden – who will celebrate their sixth and fifth birthdays on Sept. 14 and Sept. 12, respectively – get amped up to play Little League in L.A. on April 30.