Kendrick Lamar storms in at No. 1 on the Billboard + Twitter Top Tracks chart (dated April 8) as "The Heart Part 4" opens at the top. The track, which the rapper dropped with only one day's notice, becomes his fourth leader on the Top Tracks chart, after "I" (one week in 2014) and his featured turns on Taylor Swift's "Bad Blood" (three weeks in 2015) and Maroon 5's "Don't Wanna Know" (one week in 2016).
Billboard + Twitter Top Tracks is a weekly ranking of the most shared and/or mentioned songs on Twitter in the U.S., ranked by the volume of shares over a seven-day period (Monday to Sunday). The latest chart's tracking period ended on March 26.
Lamar's new tune also ends with a prophetic line - "Y'all got 'til April the 7th to get y'all sh*t together," which some suggest is a possible release date for his fourth studio album. The theory has precedent: The rapper dropped "The Heart Part 3" in October 2012 and ended the track with, "Will you let hip-hop die on October 22nd?" Lamar ultimately released his debut studio album, good kid, m.A.A.d city, on that date.
The "Part 4" release and potential new album buzz raises the rapper's Twitter mentions by 369 percent to 57,000 in the week ending March 26, according to Next Big Sound.
Just under "Part 4," Zayn's "Still Got Time," featuring Partynextdoor, blasts in at No. 2. The song gives Zayn his eighth visit to the top five on the Top Tracks chart, a sum which includes five No. 1s. Partynextdoor, meanwhile, claims his second top five after a featured turn on Major Lazer's "Run Up," also with Nicki Minaj.
A new single lifts Zayn's Twitter mentions to 222,000 for the week, a gain of 86 percent. The social activity helps bump the singer 12-8 on the Social 50 chart.
"Time" previews Zayn's sophomore effort, expected sometime this summer. The set follows 2016's Mind of Mine, which opened at No. 1 on the Billboard 200 and contained a Billboard Hot 100 chart-topper, "Pillowtalk."
An upcoming album also helps Gorillaz, who launch three songs on the Top Tracks chart, led by a No. 4 start for "Saturnz Barz," featuring Popcaan. "Andromeda," featuring D.R.A.M. opens at No. 22, while "Ascension," featuring Vince Staples, debuts at No. 41.
All three songs are expected on the virtual band's next album, Humanz, due out April 28th. The group, however, has already given its first offering of the full-length, as they performed the whole album during a secret show in London on March 24. Much of the concert was uploaded to Gorillaz's Facebook page after the event.
Humanz marks Gorillaz's first album since The Fall in 2010. The new tracks and secret show reveal skyrocket the Gorillaz's Twitter mentions 6,664 percent for the week, to 61,000 mentions.
Plus, Iggy Azalea bumps to a No. 6 debut for "Mo Bounce," after its March 24 release. The title becomes her ninth top 10 on the Top Tracks chart.
"Bounce" arrives in part thanks to Azalea's "Mo Bounce" challenge, in which users upload videos of themselves twerking to the song. The rapper has already retweeted dozens of users' clips, including one by Bebe Rexha, who Azalea called "an absolute champion" for taking on the challenge.
The "Bounce" action boosts her Twitter mentions to 68,000 for the week, a surge of 359 percent.
"Mo Bounce" is likely to feature on Azalea's forthcoming studio album, Digital Distortion, which is expected later this year.