Celeb kiddos Kingston and Zuma Rossdale headed to the La Brea Tar pits with their nanny recently, and while Kingston maintained his usual stink eye for the paps, he did try to give his little brother a sweet kiss.

Zuma was seen 'talking' on an iPhone, and the boys gave money to a street musician. Like a true rock star's kid, Kingston apparently likes to stick out his tongue, and sported a Billy Joel tee shirt on June 25.

The two best dressed kids in Hollywood shared a brotherly loving moment, despite the snap-happy photogs. 5-year-old Kingston rocked his signature bleach-blond mohawk and a pair of combat boots, while his hipster toddler brother Zuma -- who was much too busy on a conference call to accept a kiss -- donned a fedora and knee-high socks.

As for that cast on the tiny tike's arm, that's the result of a recent freak accident in the Stefani-Rossdale household. Zum was playing monkey man and climbed on top of a counter, but didn't have his cat-like instincts in place when he fell and broke his arm. His dad, the legendary Gavin Rossdale, described the feeling of his son being hurt as "the worst thing in the world."

We're glad to see he's on the mend and out enjoying some sunshine. P.S., We love those shades, little man! Do you get your style tips from Kanye, or does your mom still dress you?

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[Photo Credit: x17Online.com]