Billboard is known for its charts, and the 116-year-old music publication added to its arsenal with Social 50, which tracks the popularity of artists based on social media, CNET reported.

Social 50 uses Facebook, Myspace, Twitter, iLike, and YouTube, and determines its rankings by follower or fan additions and departures, page views, and song plays, according to CNET.

The top five this week were Rihanna, Justin Bieber, Eminem, Lady Gaga, and Nicki Minaj.

Billboard chart director Silvio Pietroluongo said in a statement that the goal of the new chart is to offer information about “the artists that music fans engage with the most in the social arena, which, in today’s world, is a significant validation of their investment in an act.”