Demi Lovato hits the top 10 on Billboard's Social 50 chart for the first time, as she jumps 17-8, following the debut of her video for "Heart Attack" on April 9. Lovato reaches the top 10 in her 115th week on the chart -- she has been a near-constant presence on the Social 50 since it launched in December 2010.
The Social 50 chart 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.
In its first week, "Heart Attack's" VEVO video has accumulated 16 million views, helping Lovato gain 429,000 news fans to her fanbase across Facebook, Twitter and YouTube. In terms of overall plays, she improves over the previous week with 8 million total plays (up by 38%).
Elsewhere in the top 10, PSY is back on the Social 50 as the K-Pop star re-enters at No. 9 following the arrival of his new single and video for "Gentleman." He arrives with the addition of 91,000 new Facebook fans (up 22%) and 33,000 new followers on Twitter (up 50%). According to YouTube, "Gentleman" received a whopping 18.9 million global YouTube views on the day it debuted (April 13), setting the record for the most views of a music video in one day.
As for the rest of the top 10: Rihanna rises 2-1 to re-claim the No. 1 spot, knocking down Taylor Swift (1-2). Justin Bieber remains steady at No. 3 while One Direction climbs (6-4) right above Shakira (7-5). Justin Timberlake tumbles (5-6) along with Bruno Mars (4-7) while Pitbull anchors (12-10).
Farther down the tally, Paramore re-enters at No. 45 with the addition of 149,000 new overall fans (up 11%). The return comes as the band bows at No. 1 on the Billboard 200 with its new self-titled album.
The group saw a 32% rise in reaction on Facebook, where fan chatter led to 100,000 new fans. Also contributing to the band's re-entry is a 67% increase in weekly Wikipedia page views that saw over 200,000 people visiting their page.