Not surprisingly, Rihanna has topped the list of the Top 50 Most Influential Celebrities on the Web, a study put together by Zimbio determined.
In order to be considered, a celebs has to be active on both Twitter and Facebook, be primarily famous in the U.S., and have an individual account.
In other words, no bands, and no brands.
Given Rihanna's Twitter, Facebook and Instagram presence, it's no surprise that she edged Justin Bieber, Miley Cyrus and Britney Spears for the crown.
Google+ and YouTube accounts, as well as scores on Klout, were also used to determine which famous figures have the most dominant digital footprints.