Paparazzi GPS: Rihanna Does Dinner, DWTS Celebs and More

Hollywood's biggest stars are stepping out and we have all of the fun footage in this edition of Paparazzi GPS!

Doing a little dinner at the popular Los Angeles eatery Mozza was singer Rihanna, while also in L.A. was "Dancing With The Stars" hopeful Ralph Macchio, who revealed to the photogs what he thought was more difficult -- dancing or acting.

Meanwhile, Macchio's fellow DWTS contestant Kirstie Alley was spotted in New York signing autographs for fans outside of "Live! With Regis & Kelly," as was "House" star Olivia Wilde.

Check out the video to see more of your favorite stars!