Steppin' Out: Marc & Pitbull, Christina Aguilera, Bruno Mars and more

1. 100711 Steppin Out Pitbull & Marc Anthony

Surprise at the Staples Center: Marc Anthony joined Pitbull during his performance at Los Angeles's Staples Center on October 6.

2. 100711 Steppin Out Aubrey Plaza

Funny People: Melissa McCarthy, Colin Hanks and Aubrey Plaza attend the second annual Art Mere/Art Pere Night in West Hollywood on October 6.

3. 100711 Steppin Out Christina Aguilera

Happy Couple?: Christina Aguilera and her boyfriend Matt Rutler seem grumpy as they leave Hakkasan Restaurant in London on October 6.

4. 100711 Steppin Out Bruno Mars

Dancin' in the Streets: Bruno Mars busts a move on the streets of Berlin while street musicians play on October 6.

5. 100611 Steppin Out Evelyn Lozada

Lady in Red: The stunning Evelyn Lozada drew inspiration from the 15th anniversary cover of Latina by wearing all red to the Latina Magazine 15th anniversary celebration in Los Angeles on October 5. 

6. 100611 Steppin Out Emilio Estevez & Martin Sheen

Father & Son Fun: Matt Lauer interviews Martin Sheen and Emilio Estevez about their new movie The Way on the Today show in New York City on October 5.

7. 100611 Steppin Out Maria Canals Barrera & Francia Raisa

Party Girls: Francia Raisa and Maria Canals Barrera enjoy themselves at the Latina Magazine 15th anniversary celebration in Los Angeles on October 5.

8. 100611 Steppin Out Scotty McCreery & Tim Allen

Tool Time: Scotty McCreery meets Tim Allen backstage at The Tonight Show with Jay Leno on October 5 in Burbank, California.

9. 100611 Steppin Out Karen Olivo

Karen's Closing: Karen Olivo relaxes after giving her closing argument on the set of Harry's Law on October 5.

10. 100511 Steppin Out Nicole Richie

Parisian Pair: Joel Madden and his wife Nicole Richie head to the Louis Vuitton fashion show during Paris Fashion Week on October 5.

11. 100511 Steppin Out Paulina Rubio

Paulina's Latest: Paulina Rubio reveals the cover art to her album Brava on October 5.

12. 100511 Steppin Out Selena Gomez

Rio Romance: Justin Bieber and Selena Gomez stroll through Rio de Janeiro on October 4. The pair enjoyed a helicoptor ride and a private dinner during their day out in the Brazilian city.

13. 100511 Steppin Out Eva Longoria

Salon Stop: Eva Longoria leaves the Ken Paves Salon in Beverly Hills on October 4 with her brunette locks flowing.

14. 100411 Steppin Out Gloria & Emilio Estefan

Scary Pair: Gloria and Emilio Estefan take part in “Winter's Night: The Haunting of Hawthorn Cemetery”, one of the haunted houses of Halloween Horror Nights at Universal Orlando.

15. 100411 Steppin Out Diego Boneta

Fancy Free: Diego Boneta supports his Rock of Ages co-star Julianne Hough at the premiere of her new movie Footloose on October 3 in Los Angeles.

16. 100411 Steppin Out Jennifer Lopez

Street Shopping: Jennifer Lopez takes a look at a street vendor's tiny statuettes in New York City on September 30.

17. 100411 Steppin Out Salma Hayek

Front Row Fan: Salma Hayek waits patiently for the Stella McCartney Spring / Summer 2012 fashion show to begin during Paris Fashion Week on October 3.

18. 100411 Steppin Out Juanes

Admiring Angelina: Juanes speaks with Angelina Jolie at the U.N. refugee agency's ceremony, Nansen Refugee Award, in Geneva, Switzerland on October 3.

19. 100311 Steppin Out Shakira

For the Kids: Shakira visits a child care center in the shantytown of Cidade de Deus in Rio de Janeiro on September 30.

20. 100311 Steppin Out Jessica Alba

Kids at Heart: Jessica Alba and her husband Cash Warren show they are not too old for carnival fun at the LA County Fair in Pamona, California on October 1.

21. 100311 Steppin Out Nicole Richie

Royalty & Richie: Nicole Richie and her husband Joel Madden take their adorable children Harlow and Sparrow Madden to the event officially inducting Rapunzel into the Disney Princess Court at Kensington Palace on October 2, 2011 in London, England.

22. 100311 Steppin Out Fergie

Perfect Performance: Fergie performs during CHASE Presents The Black Eyed Peas and Friends 'Concert 4 NYC' benefiting the Robin Hood Foundation in Central Park in New York City on September 30.

23. 100311 Steppin Out Charlize Theron & Lynda Carter

Wondrous Women: Charlize Theron and Lynda Carter look equally gorgeous at the RAGE Official Launch Party in Los Angeles on September 30.

24. 100311 Steppin Out Related Links