BOO GAZING: CELEBS OUT: GABRIELLE UNION, LUPITA NYONG'S, RACHEL ZOE, JAY-Z & MORE

Gabrielle Union in the kitchen with host Mario Batali on The Chew on ABC in NYC.

Lupita Nyong'o is seen out and about in London.

Ledisi enters the Late Show With David Letterman taping at the Ed Sullivan Theater in New York City.

After traveling the country promoting her new shoe line, Sarah Jessica Parker returns to N.Y.C. and hits the streets in style.

LaLa Anthony seen walking back to the set of the new Starz series Power Executive in NYC.

Peyton List caught up with Rachel Zoe and her client, Alba, at the NYLON X Hudson Jeans.

Katy Perry looks lovely and casual while in Los Angeles.

Samsung Galaxy treated music fans in Austin to a special performance by JAY Z and Kanye West at SXSW.

If it ain't broke, don't fix it! Pharrell Williams sports his signature hat while shopping in Brisbane, Australia.

It's always fun having a gym buddy! Britney Spears leaves a workout with boyfriend David Lucado in Thousand Oaks, Calif.

Work It EJ Johnson...Magic son is strutting her stuff!