Swift remains the country's top musical act, while Bieber returns to the chart's top 40 for the first time in more than nine months.
Taylor Swift leads the Billboard Artist 100 (dated June 27) for a record-extending 29th week, remaining the top musical act in the U.S. Meanwhile, Muse roars onto the chart in the top five and Justin Bieber makes a big rebound.
The Artist 100 is the first weekly survey dedicated to measuring artist activity across Billboard's most influential charts, including the Billboard Hot 100 songs chart, Top Album Sales and the Social 50. The Artist 100 blends data measuring album and track sales, radio airplay, streaming and social media fan interaction to provide a weekly multi-dimensional ranking of artist popularity.