Rihanna Sues Former Accountants, Alleging Millions In Losses
Rihanna Sues Former Accountants, Alleging Millions In Losses

Thanks no doubt to her unrelentingly active online audience, Rihanna once again tops Billboard's Social 50 chart. She reaches No. 1 for the first time since July 30, 2011, dethroning Adele, who had sat atop the chart for 11 straight weeks. Adele slips to No. 2 this week.

The Social 50 chart ranks the most popular artists on YouTube, Vevo, Facebook, Twitter, MySpace, using a formula that blends weekly additions of friends/fans/followers along with weekly artist page views and weekly song plays.

There's no real mystery as to why Rihanna continues to soar in online popularity. She has two singles in the top 10 of the On-Demand Songs chart: "Take Care" (Drake featuring Rihanna) at No. 6 and her own "We Found Love" (featuring Calvin Harris) at No. 10. Combined, the two songs collected well over 950,000 listens last week online. As the bulk of these listens are happening on streaming services that feature extensive social integration -- such as the use of Facebook's open graph -- they contribute greatly towards sustaining conversation and become a strong driver of online social activity.

Other social buzz continues to surround Rihanna as she promotes her role in the upcoming action film "Battleship," with a behind-the-scenes YouTube video published to Facebook on March 23. It has earned over 23,000 views and more than 21,000 likes on Facebook. "Battleship" (due May 18) marks the acting debut for the 24-year old singer and also features an all-star cast including Liam Neeson, Alexander Skarsgard and Brooklyn Decker. The buzz around her movie debut helps contribute to a 30% growth in Twitter fan acquisition over last week, which resulted in 417,323 new followers.

Meanwhile, Pitbull jumps from No. 12 to No. 6 on the Social 50 after news broke that he would record the theme for "Men In Black 3." The song, titled "Back In Time," premiered on March 26 and may debut on the Billboard Hot 100 next week. Social activity surrounding the release contributed to 44,204 views to the artist's MySpace page, a 68% increase in traffic over the previous week.

Don Omar experienced a notable Social 50 gain as well, rising from No. 47 to No. 22. The rise comes in the same week that his single "Dutty Love" jumped from No. 3 to No. 1 on the Hot Latin Songs chart -- marking the fourth No. 1 for the artist.

Back in the top 10 on the Social 50 chart, Lady Gaga falls one slot to No. 3, Justin Bieber rises 6-4 and LMFAO shuffles 8-5. Nicki Minaj slips 4-7, Katy Perry rises 11-8, Britney Spears dances up 16-9 and Lil Wayne climbs 15-10.