Steppin' Out: Bella Thorne, Jessica Alba, Mariah Carey and More!

The estrellas are stepping out today, and we've got the photos to prove it!

1. 122112 Steppin Out Bella Thorne

Dog Days of December: Bella Thorne takes her dog with her when shopping at The Grove in Hollywood on December 20.

2. 122112 Steppin Out Jessica Alba

Last Minute Shopping: Jessica Alba shops at a Target in Westwood, California a few days before Christmas.

3. 122112 Steppin Out Mariah Carey

All I Want is Aspen: Mariah Carey does some shopping in Aspen, Colorado on December 20, 2012.

4. 122012 Steppin Out Diego Boneta

LOL: Diego Boneta cracks up on the red carpet of the 2012 Miss Universe Pageant in Las Vegas on December 19. He must be excited about ogling gorgeous women from around the world.

5. 122012 Steppin Out Demi Lovato

Fierce at the Finale: Demi Lovato strikes a pose at The X Factor Season Finale Night 1 on December 19 in Los Angeles.

6. 121912 Steppin Out Antonio Banderas

School Party: Antonio Banderas and his wife Melanie Griffith attend a celebration at a school financed by the Starlite Gala Foundation in Acapulco, Mexico on December 18.

7. 121912 Steppin Out Jessica Alba

Splash of Yellow: Jessica Alba leaves a Hollywood studio wearing bell bottom jeans and a bright yellow purse on December 18.

8. 121912 Steppin Out Don Omar

Black is Best: Don Omar, Alex Sensation and Jorge Posada attend the My Label is Black event in Miami on December 13.

9. 121812 Steppin Out Ricky Martin

Quick Trip: Ricky Martin arrives at LMM International Airport in San Juan after a 24-hour trip to Puerto Rico on December 17.

10. 121812 Steppin Out Selena Gomez

Ready for Wings: Selena Gomez arrives at Hooters in Burbank on December 17.

11. 121812 Steppin Out Nicole Richie

Giving Back: Nicole Richie attends 'Disney on Ice presents Dare to Dream' at Staples Center in Los Angeles on December 17, 2012. She donated diapers to Baby Buggy benefiting Los Angeles families in need.

12. 121712 Steppin Out Jennifer Lopez

Boat Babes: Jennifer Lopez leads her twins Max and Emme to a boat cruise on the Sydney Harbor in Australia on December 15.

13. 121712 Steppin Out Demi Lovato

Demi Does Divas: Demi Lovato performs during Vh1 Divas 2012 in Los Angeles on December 16, 2012.

14. 121712 Steppin Out Selena Gomez

Lunch Lady: Selena Gomez gets lunch at Panera Bread in Encino, California on December 15.

15. 121712 Steppin Out La La Anthony

Beautiful Divas: La La Anthony and Brandy pose backstage at Vh1 Divas 2012 on December 16 in Los Angeles.

16. 121712 Steppin Out Christina Aguilera

Like Mother, Like Son: Christina Aguilera and her son Max Bratman share grumpy looks when being caught by photographers at Taste in West Hollywood on December 13.