Christina Aguilera was busy doing her thing at Sao Paulo Fashion Week Winter 2011 in Sao Paulo, Brazil last night (February 1, 2011). She showed off her ample upper half as she hit up Ibirapuera's Bienal Pavilion to help launch a special clothing brand for department store C&A.

Credit: Celebrity Gossip

Paris Hilton and her boyfriend Cy Waits arriving on a flight from Brazil at LAX airport in Los Angeles, CA on January 30, 2011.

Credit: Zimbio

Always up for a stroll down the runway, Paris Hilton partook in the Sao Paulo Fashion Week festivities in Sao Paulo, Brazil on Friday evening (January 28).

The hotel heiress showed off a range of new looks as she presented creations by Triton during the opening day of the 2011-2012 Fall-Winter collections display.

Credit: Celebrity Gossip