Boo Gazing: Celebs Out & About: Nick Cannon, Will Smith, John Legend, Fergie and more

Nick Cannon and Rev Run attend the gala opening of the new Merceses-Benz Manhattan at Mercedes-Benz.

Justine Simmons and Rev Run attend the gala opening of the new Merceses-Benz Manhattan.

John Legend performs at the Wells Fargo Center in Philadelphia.

Actress Holly Robinson Peete attends the 2nd Annual Prevention Honors Hollywood Heroes.

Will Smith and Tommy Lee Jones are seen filming on the set of Men In Black 3 in New York.La Toya Jackson's Book Launch Party at 230 Fifth Avenue.

Fergie leaves her hotel to attend a rehearsal at "Le Stade de France" in Paris.

'Naomi Campbell Launch Jeans Line With Fiorucci'.

 Actress Vanessa Williams attends the Samsung Touchscreen Refrigerator launch.

Below...Green Hornet? Nope Singer Lady Gaga arrives in Japan. And Above Hot mess is a pic  of Ga Ga backstage at the Muchmusic awards.

Two Ex's play nice Cameron Diaz and Justin Timberlake attend the New York premiere of "Bad Teacher".

Adrienne Bailon attends the Alize Mix Squad debut party at the Penthouse at Hotel Rivington Nyc, is it us or does her body look disproportion?