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.
The arrival isn't owed completely to the buzz generated by her album's release, but also by her guest feature on Ariana Grande's (13-4) new single, "Problem," which premiered on April 27.
Azalea's social lift starts with a 124% rise in conversation across Facebook, Twitter and Instagram for the week ending April 27, which led to the addition of 272,000 new fans across those platforms (up 93 percent). Also aiding her high entry was a spike in views to her Wikipedia page -- it was up 124 percent for the week.
Farther down the chart, Usher returns at No. 43 as he energized his social networks with an online campaign dubbed SNAP-A-SELFIE. Since April 14, Usher has shared a word per day, like "wild" or "flirtatious," and encouraged fans to upload photos of their own interpretations of the word using the hashtag #GoodKisser. "Good Kisser" also happens to be the name of his new single, due out May 5.
He also benefits from social activity surrounding his coaching role on NBC TV's "The Voice." Last week when contestant T.J. Wilkins was voted off, Usher Tweeted to his 9 million followers, asking them to save Wilkins from being booted from the show. His three Tweets -- all using the #VoiceSave hashtag -- collected more than 19,000 retweets.
Ultimately, between "The Voice" activity and his SNAP-A-SELFIE campaign, Usher garnered an 869 percent in retweets for the week -- according to Next Big Sound. He also added 381,000 fans, a 50 percent increase over the previous week.
As for the top 10, Justin Bieber remains at No. 1 and Shakira stays at No. 2, despite a 29% bump in weekly activity also fueled by her participation in "The Voice" as a coach. Katy Perry ascends 4-3 along with Rihanna who breaks into the top 10 after moving 11-5. Rihanna's move displaces Taylor Swift (5-6) and Beyonce (6-7). Miley Cyrus takes a more significant slide (3-8) to come in right above Eminem, who remains at No. 9. Bob Marley jumps 18-10 to anchor the region -- his first visit to the top 10 since last October.