Bruno Mars is the artist to watch…

The part-Puerto Rican singer is the top musician in the United States, rising from No. 4 to No. 1 on the Billboard Artist 100 chart dated March 4.

Mars’ ascension to the Summit follows his acclaimed appearances at the Grammy Awards on February 12.

Mars performed a tribute medley to Prince (with The Time) and his own single “That’s What I Like,” which surges into the Billboard Hot 100‘s top 10 (37-7).

The Artist 100 (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.

Mars gains by 63 percent in overall activity, with album sales (33 percent) and digital song sales (32 percent) contributing his greatest shares of Artist 100 points. On the Billboard 200 albums chart, Mars’ 24K Magic is the chart’s Greatest Gainer, jumping 7-2 with a 108 percent advance to 66,000 equivalent album units in the week ending February 16, according to Nielsen Music. “That’s What I Like,” the set’s second single, in addition to its Hot 100 vault, bounds 36-5 on Digital Song Sales (85,000 downloads sold, up 308 percent).

It’s Mars’ second total week atop the Artist 100. He first led the December 10, 2016-dated list, when 24K Magic debuted at No. 2 on the Billboard 200.