Bruno Mars' "I Just Might" spent a 31st week at No. 1 on Billboard's Hot R&B/Hip-Hop Songs chart dated October 10, 2026, matching "Luther" by Kendrick Lamar and SZA for the longest reign in the chart's 68-year history, according to Foxy 99 and RTTNews. The song debuted at No. 1 on the chart dated January 24 and has been dislodged only once since — by Drake's "Janice STFU," which held the summit for seven weeks from May to July. Foxy 99 reports that the two songs have occupied the top two spots for 18 straight weeks.

The chart's longevity list is dominated by hip-hop and R&B titans, which makes Mars' staying power so striking. RTTNews details the all-time leaderboard: "Luther" at 31 weeks (2024-25), "I Just Might" at 31, Kendrick Lamar's "Not Like Us" at 22, SZA's "Kill Bill" at 21, and Lil Nas X's "Old Town Road" at 20 — with Drake's "One Dance" and Lil Nas X & Jack Harlow's "Industry Baby" at 18. "I Just Might" is Mars' fifth Hot R&B/Hip-Hop Songs No. 1, following "That's What I Like" (2017), the Cardi B collaborations "Finesse" (2018) and "Please Me" (2019), and Silk Sonic's "Leave the Door Open" (2021), per RTTNews.

The evidence for the tie is unusually concrete: according to Luminate data cited by both Foxy 99 and RTTNews, "I Just Might" pulled 5.3 million official U.S. streams, 51.9 million in airplay audience, and 1,000 song sales during the tracking week of September 25 through October 1. Foxy 99 adds that the song has fared well well beyond the R&B/hip-hop tally — it became Mars' 10th No. 1 on the all-genre Billboard Hot 100, topped the Pop Airplay and Rhythmic Airplay charts, and climbed to No. 2 on Adult R&B Airplay. Atlantic Records released the single on January 9.

Foxy 99 reports that one more week at No. 1 would give "I Just Might" the outright record for the longest reign in the chart's history — but Drake could stand in the way. Foxy 99 notes Drake released new tracks from a deluxe edition of his album *HABIBTI* on Friday, October 2, which will count on next week's chart, with "Solar Eclipse," a team-up with Don Toliver, looking like the most likely rival. That song draws from Ella Langley's "Choosin' Texas," which holds the record for the most weeks at No. 1 on the Hot 100. The song leads off Mars' fourth solo album, *The Romantic*, which arrived February 27 and opened at No. 1 on the Billboard 200, per Foxy 99.