Jennifer Aniston beams as she films a scene with co-star Jason Bateman for her upcoming film The Baster in NYC on April 8.

Katy Perry signs autographs outside her Manhattan hotel on April 9.

Reese Witherspoon leaves her yoga class in Brentwood, Calif., on April 9.

Dakota Fanning is a Disney Girl
Dakota Fanning celebrates her the 11th birthday of her sister Elle, by posing with Chip and Dale at Disneyland in Anaheim, Calif. as part of the "Celebration Roundup and Barbeque" on April 9.

LILY VS. KRISTEN
The young fashionista – and daughter of Phil Collins – paired her Hervé Léger by Max Azria dress with black accessories for the line's runway show, while the Adventureland star kept it simple with black pumps for the film's Los Angeles premiere.

SHOPPING
She's been busy shooting a funny video with beau Zac Efron, but that doesn't mean Vanessa Hudgens can't find a little time for herself! The starlet enjoys a low-key shopping trip at Fornarina in Los Angeles on Tuesday – and spent about 30 minutes trying on clothes before leaving with some new threads.

GETTING CHEEKY
Demi Lovato flips for a friendly sea lion Saturday at the Atlantis resort on Paradise Island in the Bahamas. The singer, who performed that night, also reportedly swam with the dolphins and toured the hotel's water slides