2019 Billboard Number One Hits: Every Hot 100 Chart-Topper

The 2019 Billboard Number One Hits list was dominated by one giant horse-powered crossover, but the year had more going on than Old Town Road. Ariana Grande ruled the opening stretch, Billie Eilish broke through, Lizzo turned an older song into a new smash, and Mariah Carey finally took her Christmas classic to No. 1 after 25 years.

This page follows the Billboard Hot 100 issue dates for 2019, shown here as easy-to-read weekly date ranges. Because Billboard chart weeks can cross calendar years, this list begins with a late-2018 carryover and includes the holiday run that continued into January 2020.

The Billboard Hot 100 ranks the most popular songs in the United States using streaming activity, radio airplay, and sales. These are official Billboard No. 1 songs, not personal favorites, playlist rankings, or “the song that got stuck in your head while buying cereal” picks.

2019 Billboard Number One Hits by Week

December 30, 2018 – January 5, 2019: Thank U, Next – Ariana Grande
January 6 – January 12, 2019: Without Me – Halsey
January 13 – January 19, 2019: Sunflower – Post Malone & Swae Lee
January 20 – January 26, 2019: Without Me – Halsey
January 27 – March 2, 2019: 7 Rings – Ariana Grande
March 3 – March 9, 2019: Shallow – Lady Gaga & Bradley Cooper
March 10 – March 16, 2019: Sucker – Jonas Brothers
March 17 – April 6, 2019: 7 Rings – Ariana Grande
April 7 – April 13, 2019: Old Town Road – Lil Nas X
April 14 – August 17, 2019: Old Town Road – Lil Nas X featuring Billy Ray Cyrus
August 18 – August 24, 2019: Bad Guy – Billie Eilish
August 25 – August 31, 2019: Señorita – Shawn Mendes & Camila Cabello
September 1 – October 12, 2019: Truth Hurts – Lizzo
October 13 – October 19, 2019: Highest in the Room – Travis Scott
October 20 – October 26, 2019: Truth Hurts – Lizzo
October 27 – November 2, 2019: Someone You Loved – Lewis Capaldi
November 3 – November 9, 2019: Lose You to Love Me – Selena Gomez
November 10 – November 23, 2019: Someone You Loved – Lewis Capaldi
November 24 – December 7, 2019: Circles – Post Malone
December 8 – December 14, 2019: Heartless – The Weeknd
December 15, 2019 – January 4, 2020: All I Want for Christmas Is You – Mariah Carey

Song-by-Song Notes on the 2019 Billboard No. 1 Hits

Thank U, Next – Ariana Grande

Ariana Grande’s Thank U, Next carried over from late 2018 and opened the 2019 Hot 100 calendar at No. 1. The song turned public breakup headlines into a polished pop statement about growth, gratitude, and moving forward.

Its success helped set up one of Grande’s biggest chart years. She started 2019 already on top, which is one way to avoid easing into January.

Without Me – Halsey

Halsey reached No. 1 with Without Me, giving her a major solo Hot 100 breakthrough. The song blended wounded pop songwriting, sleek production, and a personal-feeling vocal performance that connected strongly across radio and streaming.

It returned to No. 1 after Sunflower briefly took the top spot, giving early 2019 a little chart ping-pong. Not glamorous ping-pong, maybe, but very successful ping-pong.

Sunflower – Post Malone & Swae Lee

Sunflower by Post Malone and Swae Lee reached No. 1 after becoming closely tied to Spider-Man: Into the Spider-Verse. Its laid-back melody, bright hook, and soundtrack connection helped make it one of the most durable songs of the late 2010s.

The song’s staying power went far beyond its single week at No. 1. It became a streaming monster, a soundtrack favorite, and one of those songs that seemed to live permanently inside playlists.

7 Rings – Ariana Grande

Ariana Grande’s 7 Rings debuted at No. 1 and became one of the biggest chart hits of 2019. Built around an interpolation of My Favorite Things from The Sound of Music, the song turned luxury, friendship, and flexing into a sleek pop-trap anthem.

Its eight total weeks at No. 1 gave Grande the second major Hot 100 story of her year. Rodgers and Hammerstein probably did not see this version coming, but the melody certainly found new jewelry.

Shallow – Lady Gaga & Bradley Cooper

Shallow reached No. 1 after its high-profile Oscar moment from A Star Is Born. Lady Gaga and Bradley Cooper’s duet had already become one of the most recognizable movie songs of the late 2010s, and the awards-season boost helped send it to the top.

The song’s No. 1 week showed that a powerful film performance could still translate into major chart success. Sometimes the movie moment really does leave the theater.

Sucker – Jonas Brothers

The Jonas Brothers returned with Sucker, which debuted at No. 1 and gave the group its first Hot 100 chart-topper. The song marked a major comeback after years apart, using a tight pop-rock hook and a playful video to reintroduce the band to a new chart era.

It was one of 2019’s cleanest comeback stories: reunited band, catchy song, instant No. 1. That is a pretty efficient family meeting.

Old Town Road – Lil Nas X

Old Town Road began its Hot 100 No. 1 run credited to Lil Nas X alone before the Billy Ray Cyrus remix became the dominant version. The song blended country imagery, trap production, internet humor, and viral momentum into one of the biggest chart phenomena in Billboard history.

The original version’s first week at No. 1 set the stage for the remix-fueled run that followed. It was short, strange, catchy, and built for the meme age before the phrase “meme age” had completely exhausted everyone.

Old Town Road – Lil Nas X featuring Billy Ray Cyrus

With Billy Ray Cyrus added to the official credit, Old Town Road became the longest-running No. 1 song in Hot 100 history at the time, spending 19 total weeks at the top. Its mix of country signifiers and hip-hop production made it a genre debate, a viral hit, and a pop-culture event all at once.

The song also topped Billboard’s year-end Hot 100 for 2019. No other song defined the chart year more clearly, and no horse in pop music had this much mileage.

Bad Guy – Billie Eilish

Billie Eilish’s Bad Guy finally ended the 19-week run of Old Town Road. The song’s minimalist production, whispery vocal style, and offbeat cool helped make Eilish one of the defining new stars of the year.

Its No. 1 week was historically notable because Eilish became the first artist born in the 21st century to top the Hot 100. The “duh” was small; the chart impact was not.

Señorita – Shawn Mendes & Camila Cabello

Shawn Mendes and Camila Cabello reached No. 1 with Señorita, a sultry pop duet built around Latin-pop guitar flavor and romantic chemistry. The song became one of the year’s biggest radio and streaming hits.

It also gave both artists a major Hot 100 milestone. The song was smooth, dramatic, and clearly not designed for people who prefer subtle flirting.

Truth Hurts – Lizzo

Lizzo’s Truth Hurts became one of 2019’s biggest delayed-success stories. Originally released in 2017, the song surged in 2019 through streaming, media attention, and Lizzo’s rising profile.

Its seven total weeks at No. 1 made it the longest-running No. 1 solo song by a female rapper at the time. It also gave the world one of the most quotable opening lines of the year, which is useful if your group chat needs seasoning.

Highest in the Room – Travis Scott

Travis Scott’s Highest in the Room debuted at No. 1 in October 2019. The song’s hazy production, strong streaming launch, and Scott’s status as a major event-style artist helped push it straight to the top.

Its one-week run reflected the release-week power of superstar streaming-era singles. Big opening, big attention, quick turnover — very 2019.

Someone You Loved – Lewis Capaldi

Lewis Capaldi’s Someone You Loved reached No. 1 after a long climb and returned again later in November. The ballad’s raw vocal delivery and emotional simplicity helped it connect across pop radio, adult contemporary audiences, and streaming listeners.

It gave Capaldi his first Hot 100 No. 1 and became one of the year’s defining heartbreak songs. Very few chart-toppers sounded this much like staring out a rainy window.

Lose You to Love Me – Selena Gomez

Selena Gomez earned her first Hot 100 No. 1 with Lose You to Love Me. The ballad’s intimate production and personal-feeling lyric gave it a strong emotional pull, while public interest in Gomez’s story helped drive attention around the release.

The song’s No. 1 debut was a major career moment, turning vulnerability into a chart-topping comeback.

Circles – Post Malone

Post Malone’s Circles reached No. 1 in late 2019 and continued to shape the early 2020 chart year. The song moved further into melodic pop-rock territory, showing how flexible Post Malone’s sound had become.

Its smooth hook and radio-friendly structure gave it a long chart life. The title said Circles, and the song more or less kept circling back all over pop radio.

Heartless – The Weeknd

The Weeknd’s Heartless debuted at No. 1 in December 2019. The single helped launch the After Hours era before Blinding Lights became one of the biggest hits of the following year.

Its dark, synth-heavy mood gave listeners a sharper introduction to the album cycle. In hindsight, it was the storm cloud before the neon lightning.

All I Want for Christmas Is You – Mariah Carey

Mariah Carey’s All I Want for Christmas Is You reached No. 1 on the Hot 100 for the first time in December 2019, 25 years after its original release. The song became her 19th No. 1 single and the first Christmas song to top the Hot 100 since The Chipmunk Song in 1958–59.

Its December 2019 run continued into January 2020, starting the modern tradition of Mariah Carey returning to No. 1 during the holiday streaming season. It was less a comeback than a very festive annual takeover.

Biggest Billboard Hot 100 Stories of 2019

Old Town Road Rewrote the Record Book

Lil Nas X’s Old Town Road spent 19 total weeks at No. 1 and became the longest-running Hot 100 chart-topper in Billboard history at the time. Its success came from streaming, memes, remixes, country controversy, hip-hop production, and a hook short enough to live rent-free in everyone’s head.

Ariana Grande Owned the Start of the Year

Ariana Grande topped the Hot 100 with Thank U, Next and 7 Rings, spending nine total weeks at No. 1 across the two songs in 2019. Her early-year chart run made her one of the dominant pop artists of the year.

Soundtracks Had a Strong Year

Sunflower connected with Spider-Man: Into the Spider-Verse, while Shallow surged after the success of A Star Is Born. In both cases, movie momentum helped turn already-popular songs into Hot 100 No. 1 hits.

Breakthrough Artists Hit the Top

Billie Eilish, Lil Nas X, Lizzo, Lewis Capaldi, and Selena Gomez all reached major Hot 100 milestones in 2019. The year mixed new voices, long-building careers, and sudden viral explosions.

Christmas Became a Modern Chart Force

Mariah Carey’s All I Want for Christmas Is You finally reaching No. 1 changed the way many fans viewed holiday songs on the Hot 100. Seasonal streaming turned old favorites into modern chart contenders, and 2019 was the year that point became impossible to ignore.

2019 Billboard Number One Hits Trivia

Old Town Road spent 19 total weeks at No. 1, the longest Hot 100 reign in Billboard history at that time.
Old Town Road was Billboard’s year-end Hot 100 song of 2019.
All I Want for Christmas Is You reached No. 1 for the first time 25 years after its 1994 release.
Mariah Carey earned her 19th Hot 100 No. 1 with All I Want for Christmas Is You.
Billie Eilish became the first artist born in the 21st century to top the Hot 100 with Bad Guy.
Truth Hurts became a No. 1 hit in 2019 even though it was originally released in 2017.
Post Malone had two No. 1 hits in 2019: Sunflower with Swae Lee and Circles.
Ariana Grande also had two No. 1 hits in 2019: Thank U, Next and 7 Rings.
7 Rings interpolated My Favorite Things from The Sound of Music.

Why the 2019 Billboard Number One Hits Matter

The 2019 Billboard Number One Hits list told the story of a chart year shaped by streaming, fan momentum, soundtracks, delayed breakthroughs, and viral culture. It was a year when a country-rap novelty could become the biggest Hot 100 hit in history and a 25-year-old Christmas song could finally reach No. 1.

The year also showed how flexible pop had become. Ariana Grande blended pop and trap influence, Billie Eilish brought minimalist weirdness to the top, Lizzo turned confidence into a chart anthem, and Post Malone kept blurring the line between rap, pop, and rock melody.

For chart fans, 2019 was memorable because it had one obvious headline and plenty of smaller stories worth remembering. Old Town Road may have owned the year, but the full No. 1 list shows a much wider picture of what pop music sounded like at the end of the 2010s.