The pop/R&B star completes a record 114-week ascent to No. 1 as his new album ’24K Magic’ arrives. Plus, Metallica vaults to No. 2, powered by its new set.

Bruno Mars is the top musical act in the U.S., bounding from No. 10 to No. 1 on the Billboard Artist 100 chart (dated Dec. 10) for his first week at the summit. Plus, Metallica blasts to a new high of No. 2, with both acts propelled by the debuts of their new albums.

The Artist 100 measures artist activity across Billboard‘s most influential charts, including the Billboard Hot 100, Top Album Sales and the Social 50. The Artist 100 (which launched in July 2014) 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.

As Mars’ new LP, 24K Magic, enters at No. 2 on both the Billboard 200 and Top Album Sales, and No. 1 on Top R&B/Hip-Hop Albums, he crowns the Artist 100 for the first time in his 114th week on the chart (after previously reaching No. 5). He passes Shawn Mendes, who completed the longest prior ascent to No. 1 when he reigned at last in his 86th week on the chart in October.

24K Magic bows on the Billboard 200 with 231,000 equivalent album units and on Top Album Sales with 194,000 in traditional sales (Mars’ best weekly album sales sum) in the week ending Nov. 24, according to Nielsen Music. Album sales account for the greatest share (59 percent) of Mars’ Artist 100 points.

Meanwhile, Metallica flies 55-2 on the Artist 100 (passing its prior No. 22 peak), fueled by new album Hardwired…To Self-Destruct, which enters the Billboard 200 (291,000) and Top Album Sales and Top Rock Albums (282,000) at No. 1. Album sales drive 96 percent of the hard rock icons’ Artist 100 points.

As for why Mars ranks higher than Metallica on the Artist 100, despite the band’s album arriving with higher sales and album equivalent totals, Mars boasts an element missing from Metallica’s haul: a hit pop single. The 24K Magic title track, up 6-4 on the Hot 100 (reaching a new peak), helps push him higher than Metallica on the Artist 100 as it continues to draw hefty airplay (112 million in the tracking week), streams (17 million) and sales (79,000).

Rounding out the Artist 100’s top five, Pentatonix rises 4-3; Drake dips 2-4; and The Weeknd ascends 7-5.

Check out this week’s entire Artist 100 here.