BOO GAZING: CELEBS OUT: JENIFER LOPEZ, TIA MOWRY, LADY GAGA, ROBIN THICKE, HEDI KLUM & MORE

Casper Smart and girlfriend Jennifer Lopez stayed cozy at the March of Dimes Celebration of Babies event in Beverly Hills.

Gabrielle Union attends AD Oasis at The James Royal Palm Hotel in Miami Beach, Florida.

Tia Mowry attends the March of Dimes Celebration of Babies Luncheon at the Beverly Hills Hotel in Beverly Hills.

She certainly wasn't Born This Way: Lady Gaga flaunts a new look with white dreadlocks and a powered pale face.

Kelly Rowland attends The Salvation Army's 4th Annual Rock The Red Kettle Concert at 5 Towers Outdoor Concert Arena in Universal City, California.

That was quick! Halle Berry debuts her incredibly slender post-pregnancy figure in tight trousers as she steps out for first time since giving birth to son just weeks ago

Heidi Klum escorted a bunch of kids wearing matching animal print coats, boots and jeans to a gymnastics class in Culver City, Calif.

Sarah Jessica Parker (wearing Level 99 Casey Tomboys) and twins Marion and Tabitha braved the rainy chilly weather in NYC's West Village.