Bruno Mars’ “I Just Might” blasts onto the Billboard Hot 100 at No. 1. The song starts as his 10th career leader, and his first to debut at the summit.

Mars ties for the 10th-most No. 1s in the Hot 100’s history, which dates to the chart’s Aug. 4, 1958, inception. He’s just the fourth solo male with 10 or more No. 1s, joining Drake, Michael Jackson and Stevie Wonder.

The track — also Mars’ fifth leader, and first No. 1 debut, on the Hot R&B/Hip-Hop Songs chart — previews his album The Romantic, his first solo set since 2016, due Feb. 27.

Check out the full rundown of this week’s Hot 100 top 10 below.

The Hot 100 blends all-genre U.S. streaming (official audio and official video), radio airplay and sales data, the lattermost metric reflecting purchases of physical singles and digital tracks from full-service digital music retailers; digital singles sales from direct-to-consumer (D2C) sites are excluded from chart calculations. All charts (dated Jan. 24, 2026) will update on Billboard.com tomorrow, Jan. 21 (a day later than usual, due to the Martin Luther King Jr. holiday Jan. 19). For all chart news, you can follow @billboard and @billboardcharts on both X, formerly known as Twitter, and Instagram. Plus, for all chart rules and explanations, click here.

Luminate, the independent data provider to the Billboard charts, completes a thorough review of all data submissions used in compiling the weekly chart rankings. Luminate reviews and authenticates data. In partnership with Billboard, data deemed suspicious or unverifiable is removed, using established criteria, before final chart calculations are made and published.