Celeb Cam: Candid Shots of the Week - Feb 14, 2013

We love following our favorite stars on social media. This week Beyonce and Oprah take a power walk in New York City, Rihanna meets the Marleys backstage at the Grammys, and both Kelly Rowland and Brandy get birthdays messages on Instagram. See these and more on celebrity pics on social media.

Photo Credit: Rihanna/ Instagram