"I Just Might" by Bruno Mars reaches 21 weeks at No. 1 on Billboard's Hot R&B/Hip-Hop Songs chart, tying SZA's "Kill Bill" as the third-longest-running leader ever. LOS ANGELES, CALIFORNIA - FEBRUARY 02: Bruno Mars performs onstage during the 67th Annual GRAMMY Awards at Crypto.com Arena on February 02, 2025 in Los Angeles, California. (Photo by John Shearer/Getty Images for The Recording Academy)Getty Images for The Recording AcademyBruno Mars may be primarily known as a pop star, but he has produced some of the biggest R&B tunes of the past decade or two. That includes “I Just Might,” the lead single from The Romantic, the album he released this spring after fans waited nearly a decade between his solo offerings.“I Just Might” has not disappointed. The smash has led one of Billboard’s most competitive genre-specific tallies for months, and as it earns another week at No. 1, Mars moves higher on an all-time ranking and ties another R&B classic.Bruno Mars Ties SZA’s “Kill Bill”With 21 weeks at No. 1, “I Just Might” ties as the third-longest-running leader in the history of the Hot R&B/Hip-Hop Songs chart. Mars matches “Kill Bill” by SZA. That tune first reached the summit in 2022 and continued reigning into the following year, eventually accumulating the same 21-frame run that “I Just Might” has now managed.MORE FOR YOUMars could move ahead of SZA in only a matter of days. “I Just Might” does not appear to face much immediate competition, and another week in charge would give it sole possession of third place on the all-time list.Bruno Mars Could Match Kendrick Lamar NextShould “I Just Might” keep at No. 1 next week, it will not only pass “Kill Bill,” but also match another recent blockbuster. Kendrick Lamar’s “Not Like Us” spent 22 turns running the show on the Hot R&B/Hip-Hop Songs chart between 2024 and 2025. The Drake diss track later won Record of the Year at the Grammys.Kendrick Lamar and SZA Still Hold the All-Time RecordIt will take months for “I Just Might” to challenge the longest-running No. 1 in the history of the Hot R&B/Hip-Hop Songs chart. Lamar and SZA hold that record together with “Luther.” Their collaboration spent 31 weeks dominating the tally between 2024 and 2025 – 10 more than “I Just Might” has already collected – and also went on to win Record of the Year at the Grammys only a year after “Not Like Us.”Bruno Mars Leads Two Billboard Charts“I Just Might” appears on 11 Billboard charts this week, though it commands only two of them. Both are “Hot”-labeled genre rosters that blend sales, streams and plays on radio stations.In addition to its twenty-first week atop the Hot R&B/Hip-Hop Songs chart, the single remains at No. 1 on the Hot R&B Songs ranking. “I Just Might” has spent 28 weeks on that tally in first place.ForbesBruno Mars Sees Several Of His Signature Hits Return To The Same ChartBy Hugh McIntyre