The youngest Jonas Brother takes a b-day walk with his pup in Toluca Lake, Calif. Plus: Britney Spears, Gwyneth Paltrow, Lindsay Lohan and more

ROLL WITH IT

Naomi Watts is on a roll as she strolls Monday with 13-month-old son Alexander back home in Sydney, Australia. Despite her burgeoning baby bump, the actress has yet to confirm her second pregnancy.