Steppin' Out: Christina Aguilera, Shakira, Jessica Alba and more

1. 042111 Steppin Out Christina Aguilera

A Marilyn Moment: Christina Aguilera goes retro-Hollywood when arriving at The Abbey to become the first celebrity to put her handprints and footprints on the 'Hollywood Gay Walk of Fame' in West Hollywood on April 20.

2. 042111 Steppin Out Jessica Alba & Nicole Richie

Hot Mamas: Jessica Alba and Nicole Richie stylishly arrive at The Baby2Baby event on April 20 in West Hollywood.

3. 042111 Steppin Out Shakira

Comforting Kiss: Shakira and Gerard Pique continue their Spanish PDA tour with a hug and kiss after Pique and his  Barcelona teammates were defeated by Real Madrid on April 20 in Valencia, Spain.

4. 042111 Steppin Out Mark Sanchez

His Heart Will Go On...: New York Jets quarterback Mark Sanchez reenacts the famous scene from Titantic while vacationing in Hawaii on April 20.

5. 042111 Steppin Out Rico Rodriguez

Growing Up So Fast: Modern Family's cute youngster Rico Rodriguez goes grey and bearded. He said, "It's growing on me."

6. 042011 Steppin Out Bruno Mars

Doo-Wop Down Under: Bruno Mars bangs his drums during his performance on April 18 in Auckland, New Zealand.

7. 042011 Steppin Out Jennifer Lopez

A Lopez Launch: Jennifer Lopez launches the Blackberry Playbook and her new album LOVE? at Best Buy in Los Angeles on April 19. The American Idol judge was a good sport with fans leaving messages on their phones saying, "This is Jennifer Lopez please leave a message after the beep".

8. 042011 Steppin Out Mark Sanchez

No Worries: It may look like the infamous Unabomber, but it is actually hottie New York Jets quarterback Mark Sanchez. He doesn't seem to be too worried about the NFL players lock out as he strolls through Maui Airport on April 19.

9. 042011 Steppin Out Nicole Richie

Super Model: Nicole Richie covers the May/June issue of Europe's That magazine. Lookin' good!

10. 042011 Steppin Out Odette Yustman & Mario Lopez

Chit Chat: Breaking In's Odette Yustman impresses Mario Lopez with her fluent Spanish while visiting his show Extra in Los Angeles on April 19.

11. 042011 Steppin Out Alessandra Ambrosio

Back to Work: After a fun weekend at Coachella, model Alessandra Ambrosio is back at work on April 19.

12. 041911 Steppin Out Thalia

Baby Bliss: Tommy Mottola and his pregnant wife Thalia eat lunch at Nello in New York City on April 17.

13. 041911 Steppin Out Jessica Alba

Sunny Shoot: Jessica Alba has fun at a photoshoot with famed photographer Marc Baptiste in California on April 18.

14. 041911 Steppin Out Jennifer Lopez

Wedding Date: Jennifer Lopez and Marc Anthony head to producer Brad Grey's wedding in Bel-Air, California on April 16. The nuptials were a high profile event with Brad Pitt, Gwen Stefani and Gavin Rossdale, Tom Cruise and Katie Holmes, Jack Nicholson and Mark Wahlberg also in attendance.

15. 041911 Steppin Out Alexa Vega and Wilmer Valderrama

Prada Duo: Alexa Vega and Wilmer Valderrama promote their movie From Prada to Nada in Mexico on April 18.

16. 041911 Steppin Out Jesus Luz

Horsin' Around: Brazilian model Jesus Luz shares a moment with a horse in New York over the weekend. Lucky horse!

17. 041811 Steppin Out Christina Milian

Matching Smiles: Christina Milian brings her happy daughter Violet Madison Nash to the 2011 Jenesse Silver Rose Auction and Gala on April 17 in Beverly Hlls.

18. 041811 Steppin Out Benicio del Toro

Papa Bear: Father-to-be Benicio del Toro doesn't seem to be phased by the gossip as he heads back to his Hollywood home on April 15.

19. 041811 Steppin Out Shakira & Pique

Lovebirds: Gerard Pique and Shakira no longer keep their romance secret while out for lunch in Madrid on April 15.

20. 041811 Steppin Out Mario Lopez & Rico Rodriguez

Two Studs: Rico Rodriguez and Mario Lopez hang out (and do some cooking) together on April 15.

21. 041811 Steppin Out Related Links