The chart-topping singer hits the stage for a good cause in Las Vegas. Plus: Usher, Katie Holmes, Lauren Conrad and more

DADDY'S BOY

Usher scoops up 10-month-old son Usher Raymond V during a playdate Thursday at Coldwater Canyon Park in Beverly Hills. The R&B star's son will soon have a new playmate: Usher and wife Tameka Foster are expecting their second child.