Bruno Mars Ties the Longest No. 1 Run in R&B/Hip-Hop Chart History

LOS ANGELES MONDAY, OCTOBER 12, 2026

Some records fall in a blaze. This one has been built the slow way, week after week, until there was almost nothing left ahead of it. Bruno Mars’s “I Just Might” has now spent 31 weeks at No. 1 on Billboard’s Hot R&B/Hip-Hop Songs chart, Billboard reported, tying Kendrick Lamar and SZA’s “Luther” for the longest run at the top in the chart’s 68-year history. The chart has existed since 1958. In all that time, no song has stayed on top longer than these two — and next week, one of them will stand alone.

The milestone arrived on the chart dated October 10. As Music Times reported in its coverage of the tie, the song’s longevity is not the story of a single explosive debut that faded and returned; it is the story of a record that arrived at No. 1 and, with one interruption, simply refused to leave. AllHipHop reported the same milestone, framing it as the latest entry in a year that has repeatedly rewritten what a long-running hit is supposed to look like in the streaming era. You can trace the full arc on Bruno Mars’s artist page in Previously’s music catalog.

01 The Numbers Behind Week 31

Longevity at this scale is never an accident, and the latest tracking week shows why the song keeps holding. For the week of September 25 through October 1, Billboard reported, citing Luminate data, that “I Just Might” drew 5.3 million official U.S. streams, reached 51.9 million in radio airplay audience impressions, and sold 1,000 downloads. That balance matters. Streaming spikes can carry a song for a month; radio is what carries a song for three-quarters of a year. An airplay audience north of 50 million this deep into a run means programmers are still treating the record as a current, not a recurrent — the distinction that separates a hit from a fixture.

The sales figure, modest by design in 2026, underlines the point rather than undermining it. This is not a fan-army purchase campaign propping up a chart position. It is passive, everyday listening at enormous scale: people hearing the song on the radio, saving it, replaying it, and never quite moving on. Charts reward intensity in the short term. Thirty-one weeks rewards something rarer — a song that fits everywhere and wears out nowhere.

02 One Interruption in Nine Months

The run began at the top. “I Just Might” debuted at No. 1 on the chart dated January 24, and its grip since then has been broken only once: Drake’s “Janice STFU” held the summit for seven weeks from May into July before Mars reclaimed it. Put plainly, across roughly nine months, exactly one other song has managed a single week — let alone seven — in the spot Mars has otherwise owned. The interruption, paradoxically, makes the achievement clearer. This was not an uncontested chart in a quiet season. Another superstar took the crown, held it for nearly two months, and still could not keep it.

For Mars, the song is his fifth No. 1 on Hot R&B/Hip-Hop Songs, and its parent era has already delivered a tenth No. 1 on the all-genre Billboard Hot 100. Released January 9 on Atlantic Records as the lead single from his fourth solo album, The Romantic — which arrived February 27 and debuted at No. 1 on the Billboard 200 — “I Just Might” was positioned as a comeback statement. Comebacks are supposed to spike. This one settled in and stayed, becoming the defining chart story of the year in its genre. Compare the run with the other giants on Kendrick Lamar’s page and SZA’s page.

03 The Company It Now Keeps

To understand where 31 weeks sits, look at what sits below it. Behind Mars and “Luther” — which ran up its 31 weeks across 2024 and 2025 — the next-longest runs in the chart’s history are Kendrick Lamar’s “Not Like Us” at 22 weeks, SZA’s “Kill Bill” at 21, and Lil Nas X’s “Old Town Road” at 20. There is a nine-week cliff between the top two and everything else ever released. That gap is the story: the streaming-and-radio era has produced a new class of super-run that the chart’s first six decades never approached, and Mars and Lamar now share its summit.

There is a pleasing symmetry in who he is tied with. Lamar and SZA set the mark with a duet built for endless replay; Mars has matched it as a solo lead single anchoring an album era. Both records are products of artists at commercial peaks who understand pacing — songs engineered, consciously or not, to be lived with rather than merely launched. The difference is that Mars’s run is still active, which means the tie may be remembered as a pause rather than a destination.

04 One Week From Alone at the Top

The arithmetic from here is brutally simple. If “I Just Might” holds at No. 1 on the chart dated October 17, it reaches 32 weeks and owns the longest run in Hot R&B/Hip-Hop Songs history outright — no tie, no asterisk, no shared line in the record book. If it slips, the tie stands and “Luther” keeps its share of the crown. Billboard reported the song’s underlying numbers remain strong enough that another week is a genuine prospect rather than a sentimental hope, and Music Times reported similar staying power in its tracking coverage.

Either way, the larger point has already been made. A chart that began in 1958 has measured rhythm and blues, soul, funk, new jack swing, hip-hop’s golden age and its streaming transformation. Across all of it, the ceiling was 31 weeks, set only last year — and a 40-year-old pop craftsman from Honolulu has just reached up and touched it. Next week, we find out whether he pushes through it. Follow the outcome in Previously’s music coverage.

5.3M U.S. streams · 51.9M airplay audience · 1,000 sold (Sept. 25–Oct. 1, Luminate via Billboard). Drake’s “Janice STFU” — 7 weeks at No. 1, May–July.