Steppin' Out: Christina Aguilera & Pitbull, Selena Gomez, Salma Hayek and more

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

1. 111912 Steppin Out Christina Aguilera

XO Xtina: Christina Aguilera receieves a big hug and kiss from Pitbull after the two performed together during the 40th American Music Awards on November 18 in Los Angeles.

2. 111912 Steppin Out Selena Gomez

Caught in the Act: Justin Bieber and Selena Gomez meet for dinner at Yamato in Encino, California on November 16, a few days after their split went public.

3. 111912 Steppin Out Cassie

Buzzed: Cassie and Rihanna, with their similarly shaved heads, chat at the VIP Room in Paris on November 17.

4. 111912 Steppin Out Salma Hayek

Fierce Fans: Francois-Henri Pinault and his wife Salma Hayek get animated while cheering during the Paris Saint-Germain soccer match in Paris on November 17.

5. 111912 Steppin Out Mariah Carey

Teen Time: Mariah Carey and Swizz Beatz attend Nickelodeon's 2012 TeenNick HALO Awards at Hollywood Palladium on November 17 in Hollywood. Watch the show tonight on Nick at Nite on 8 PM ET.