Also, Sheku Kanneh-Mason debuts at No. 7 following his royal wedding performance.

Amid BTS’ 76th nonconsecutive week at No. 1 on Billboard’s Social 50 chart (and its first No. 1 on the Billboard 200 and first top 10 on the Billboard Hot 100), the K-pop boy band also helps multiple acts to new heights on the June 2-dated ranking, thanks to selfies with the seven-member group.

The Social 50 is powered by data tracked by music analytics company Next Big Sound and ranks the most popular artists on Facebook, Twitter, Instagram, YouTube, Wikipedia and Tumblr. The chart's methodology blends weekly additions of friends/fans/followers along with artist page views and engagement. The chart’s latest tracking week ended May 24.

First up in the BTS selfie parade: John Legend. The singer-songwriter has had a busy few weeks, what with the birth of his second child with Chrissy Teigen, son Miles, on May 16 and a performing gig at the May 20 Billboard Music Awards. The latter in particular helps score him his 6,674 percent gain in Twitter mentions, to 526,000 total in the week ending May 24, according to Next Big Sound. At the show, he not only performed his new single “A Good Night,” but also snapped a backstage selfie with BTS, which garnered him a healthy amount of social media interaction.

It’s Legend’s second week in the top 20 of the chart in his career, both of which have come in the last month (the other: No. 15, May 12).

In other BTS-selfie-assisted news, Backstreet Boys debut on the Social 50 at No. 6.

To be fair, insatiable appetites for the boy band’s newest single, “Don’t Go Breaking My Heart,” helped matters. In addition to a 291 percent boost in Wikipedia views (100,000 views) and 100,000 new YouTube subscribers (up 626 percent), BSB earned 282,000 Twitter reactions and 144,000 mentions, celebrating 10 million views on the “Heart” music video with a May 23 tweet and -- like Legend -- sharing a May 19 selfie with BTS that drove some extra social activity (the band added a hashtag, #BTSB, to commemorate the meeting of the two boy bands).

And then there are The Chainsmokers -- no strangers to the BTS selfie game -- who re-enter the Social 50 at No. 16 following their own selfie with the group at the BBMAs, scoring a 1,084 percent gain in Twitter mentions to 47,000 overall.

Back with the boys! Congrats on the new album @BTS_twt pic.twitter.com/1prMieFfbu — THE CHAINSMOKERS (@TheChainsmokers) May 21, 2018

Meanwhile, cellist Sheku Kanneh-Mason -- who performed at the May 19 wedding of Prince Harry and Meghan Markle -- debuts at No. 7 on the Social 50 with significant boosts to his follower counts on Twitter (90,000 new followers), along with 45,000 Wikipedia views. (No BTS selfie, though -- yet.)