The diva reaches the top for the first time, powered by her new album "Witness."
Katy Perry vaults from No. 44 to No. 1 on the Billboard Artist 100 chart (dated July 1) to become the top musical act in the U.S. for the first time. She completes a record 149-week ascent to the summit, passing Bruno Mars' 114-week rise to No. 1 on the Dec. 10, 2016-dated list.
The Artist 100, which launched in July 2014, measures artist activity across key metrics of music consumption, blending album and track sales, radio airplay, streaming and social media fan interaction to provide a weekly multi-dimensional ranking of artist popularity.
Perry's leap to No. 1 is fueled by her new album Witness, which debuts at No. 1 on the Billboard 200 with 180,000 equivalent album units earned in the week ending June 15, according to Nielsen Music. The album is Perry's third No. 1 on the Billboard 200, following Prism and Teenage Dream (both released prior to the Artist 100's inception). Album sales contribute the majority of Perry's Artist 100 points (86 percent).