Steppin' Out: Christina, Sofia, Mariah and more!

See what our stars have been up to this week!

1. Steppin' Out 03.25.08 01 America

Politics Overload: Looks like the campaign trail is starting to take a toll on America Ferrera! The Ugly Betty star cracks a tired smile while stumping for Hillary Clinton at a voter registration rally in Philadelphia.

2. Steppin' Out 03.25.08 02 Millian

Retail Therapy: What’s got Christina Millian so giddy? After a day’s worth of shopping on Rodeo Drive, The Cuban songstress laughs it up for photogs as she waits for a valet attendant to bring her car.

3. Steppin' Out 03.25.08 03 Perez

Loud Mouth: Gossip blogger Perez Hilton looks right at home on the red carpet in his white guayabera, white pants and signature hairdo of the week. His labradoodle, Teddy? Not so much.

4. Steppin' Out 03.25.08 04 Vergara

Bookish Babe: Even in a bulky grey sweatshirt and thick plastic frames, Tyler Perry’s Meet the Browns star Sofia Vergara is still gorgeous while shopping for reading glasses in Beverly Hills.

5. Steppin' Out 03.25.08 05 Mariah

Guard My Body: Mariah Carey’s security posse shields her from paparazzi and unwieldy fans as the diva arrives at Villa Nightclub in West Hollywood for a night of partying.  

6. Steppin' Out 03.25.08 06 Vanessa

Best Friends: High School Musical starlet Vanessa Hudgens and Alyson Michalka (of Aly and AJ fame) look like they’re laughing away a couple of fanboys as they grab a caffeine fix at Beverly Hills’ Urth Café.

7. Steppin' Out 03.25.08 07 Alba

Cover Up: Mami-to-be Jessica Alba shies away from photographers on her way out of Nails Design on Wilshire, where she reportedly got a French tip manicure, pedicure and deep tissue massage.

8. Steppin' Out 03.25.08 08 Castillo

Party Girl: After a night of clubbing at Hollywood hotspot Hyde, La Misma Luna star Kate del Castillo waves goodbye to the paparazzi while pulling away in her ride.

9. Steppin' Out 03.25.08 10 X Tina

Break Time: She's not pregnant anymore, but Christina Aguilera still needs some rest! The new mom lounges on a mattress while shopping with hubby Jordan Bratman in Beverly Hills.

10. Steppin' Out 03.25.08 09 Beckham

Attention Getters: Never ones to shy away from a good photo op, new galpals Victoria Beckham and Eva Longoria couldn’t look happier to be followed by a swarm of gawkers as they shop on Rodeo Drive with Beckham’s son, Romeo.