Instagram currently holds the title of hottest new app in Hollywood. Everyone from Rihanna to Oprah—and yes, even the President and First Lady—are happy to share their personal pictures on it. See the 50 stars that will brighten up your photo feed.
Follow: @badgalririThe social media app has proven to be a fun way to gain more insight into the lives of the folks we love. Celebs like Rihanna keep fans happy with frequent photo updates.