In the same week Lorde rises to the top of the Billboard Hot 100 with her smash single "Royals," she also debuts on the Social 50 chart.

The Social 50 ranks the most popular artists on YouTube, Vevo, Facebook, Twitter, SoundCloud, Wikipedia, Myspace and Instagram. The chart's methodology blends weekly additions of friends/fans/followers along with artist page views, song plays and reactions as measured by music analytics company Next Big Sound.

Lorde's 'Royals' Crowns Hot 100

Lorde’s entry at No. 41 is spurred by fan engagement on Facebook -- a 42% rise in conversation about her on the platform led to a 15% jump in fan acquisition for the week. That helped contribute to an overall gain of 120,000 new fans to her online fanbase. Lorde's song plays are up this week as well. Overall, her music across SoundCloud and YouTube were played just over two million times. The "Royals" video on YouTube garnered 1.73 million of those plays (up 16% for the week).

Meanwhile, late rapper 2Pac makes a dramatic rise this week after news broke that his estate is filing a $1.1 million lawsuit against Entertainment One, the company that purchased the Death Row Record's catalog earlier this year. (Many of 2Pac's albums were recorded with Death Row.) 2Pac was also in the news cycle the previous charting period when it was announced that a film about his life would begin filming in 2014. The combined exposure caused him to rise 43-10, breaking into the top 10 for the first time, thanks in part to a strong 84% rise in weekly fan acquisition on Facebook.

Meanwhile, Drake also reaches a new peak as he rises 30-13. A 48% increase in weekly fan acquisition is responsible for the jump, a rise driven by online conversation around the release of his new album, "Nothing Was The Same," which debuted this week at No. 1 on the Billboard 200.

Jessie J makes a No. 33 re-entry this week as well. Her newest album, "Alive," was released in her U.K. on Sept. 25, causing weekly fan acquisition to jump by 97%. The album does not have a U.S. release date. (She recently gave an interview to Digital Spy, saying that her "American label" doesn't "think it will work for their territory.")

Back to the top 10, Miley Cyrus remains at No. 1, while Katy Perry (3-2) swaps positions with Justin Timberlake (2-3). Taylor Swift makes a (6-4) swing up the tally with Britney Spears (7-5), who teased audiences during the charting week with images from her newly-released "Work Bitch" music video. Justin Bieber takes a spill from No. 4 to No. 6, along with One Direction, who goes 5-7. Rihanna ascends slightly (9-8) and Shakira bumps 13-9.

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