# List of Billboard Hot 100 number ones of 2020

The Billboard Hot 100 is a chart that ranks the best-performing songs in the United States. Its data, published by Billboard magazine and compiled by MRC Data, is based collectively on each song's weekly physical and digital sales, as well as the amount of airplay received on American radio stations and streaming on online digital music outlets.
During 2020, twenty singles reached number-one on the Hot 100, making 2020 the year with the most number-one hits on the Hot 100 since 1991, which had twenty-seven. In addition, two other number-one singles in 2020, "All I Want for Christmas Is You" by Mariah Carey and "Circles" by Post Malone, had each previously hit number one in 2019. Twenty-five artists reached the top of the Hot 100 in 2020, with thirteen—Roddy Ricch, Kid Cudi, Doja Cat, Nicki Minaj, Megan Thee Stallion, DaBaby, 6ix9ine, Harry Styles, BTS, M.I.A., Jawsh 685, 24kGoldn, and Iann Dior—achieving their first number-one single. Ariana Grande and BTS scored three number ones each. Ricch's "The Box" was the longest-running number-one of the year, leading the chart for eleven weeks, whereas the Weeknd's "Blinding Lights" was the year's best performing song on the chart, topping the Billboard Year-End Hot 100.
For the first time since 1990, six songs topped the Hot 100 in six consecutive weeks, namely "The Scotts" by The Scotts (Travis Scott and Kid Cudi), "Say So" by Doja Cat featuring Minaj, "Stuck with U" by Grande and Justin Bieber, "Savage" by Megan Thee Stallion featuring Beyoncé, "Rain on Me" by Lady Gaga and Grande, and "Rockstar" by DaBaby featuring Ricch. Billboard highlighted this unusual amount of turnover for the number-one spot on the chart, and cited many reasons to this phenomenon—song remixes, organized fan buying/streaming activities and the release of numerous collectible physical copies (CDs and vinyls) and bundles by artists to encourage their fans to purchase multiple copies of a song. This made the Hot 100 chart "more of a first-week factor than usual", explaining the drop in sales units of a song after it peaked at the number-one spot.
In July 2020, Billboard announced that the Hot 100 chart would "no longer allow" the sales of physical/digital bundles (physical singles that are clubbed with digital downloads) to be reported as digital sales, which is a "widespread" industry practice of not manufacturing and shipping the vinyls, CDs and other physical copies to consumers for weeks or months, but making the bundled digital download instantly redeemable, a tactic generally used by artists like Grande, Bieber and 6ix9ine to boost their chart positions; Billboard asserted that those physical singles would only be counted when they are shipped to the consumer, making the tactic "ineffectual".
The year 2020 broke the record for the calendar year that spawned the most number-one debuts on the Hot 100, with twelve songs debuting atop the chart: Drake's "Toosie Slide", "The Scotts" by Scott and Cudi, "Stuck With U" by Grande and Bieber, "Rain On Me" by Gaga and Grande, "Trollz" by 6ix9ine and Minaj, Taylor Swift's "Cardigan", Cardi B's "WAP" featuring Megan Thee Stallion, BTS's "Dynamite", Scott's "Franchise" featuring Young Thug and M.I.A., Grande's "Positions", BTS's "Life Goes On", and Swift's "Willow", in that order. 2020 further marked the first calendar year in Hot 100 history to have more than one all-female collaboration reach the number-one spot, with four.

## Chart history

Key :
| † | Indicates best-performing song of 2020 |
| No. | Issue date | Song | Artist(s) |
| 1095 | January 4 | "All I Want for Christmas Is You" | Mariah Carey |
| re | January 11 | "Circles" | Post Malone |
| 1096 | January 18 | "The Box" | Roddy Ricch |
| 1096 | January 25 | "The Box" | Roddy Ricch |
| 1096 | February 1 | "The Box" | Roddy Ricch |
| 1096 | February 8 | "The Box" | Roddy Ricch |
| 1096 | February 15 | "The Box" | Roddy Ricch |
| 1096 | February 22 | "The Box" | Roddy Ricch |
| 1096 | February 29 | "The Box" | Roddy Ricch |
| 1096 | March 7 | "The Box" | Roddy Ricch |
| 1096 | March 14 | "The Box" | Roddy Ricch |
| 1096 | March 21 | "The Box" | Roddy Ricch |
| 1096 | March 28 | "The Box" | Roddy Ricch |
| 1097 | April 4 | "Blinding Lights" † | The Weeknd |
| 1097 | April 11 | "Blinding Lights" † | The Weeknd |
| 1098 | April 18 | "Toosie Slide" | Drake |
| re | April 25 | "Blinding Lights" † | The Weeknd |
| re | May 2 | "Blinding Lights" † | The Weeknd |
| 1099 | May 9 | "The Scotts" | The Scotts, Travis Scott and Kid Cudi |
| 1100 | May 16 | "Say So" | Doja Cat featuring Nicki Minaj |
| 1101 | May 23 | "Stuck with U" | Ariana Grande and Justin Bieber |
| 1102 | May 30 | "Savage" | Megan Thee Stallion featuring Beyoncé |
| 1103 | June 6 | "Rain on Me" | Lady Gaga and Ariana Grande |
| 1104 | June 13 | "Rockstar" | DaBaby featuring Roddy Ricch |
| 1104 | June 20 | "Rockstar" | DaBaby featuring Roddy Ricch |
| 1105 | June 27 | "Trollz" | 6ix9ine and Nicki Minaj |
| re | July 4 | "Rockstar" | DaBaby featuring Roddy Ricch |
| re | July 11 | "Rockstar" | DaBaby featuring Roddy Ricch |
| re | July 18 | "Rockstar" | DaBaby featuring Roddy Ricch |
| re | July 25 | "Rockstar" | DaBaby featuring Roddy Ricch |
| re | August 1 | "Rockstar" | DaBaby featuring Roddy Ricch |
| 1106 | August 8 | "Cardigan" | Taylor Swift |
| 1107 | August 15 | "Watermelon Sugar" | Harry Styles |
| 1108 | August 22 | "WAP" | Cardi B featuring Megan Thee Stallion |
| 1108 | August 29 | "WAP" | Cardi B featuring Megan Thee Stallion |
| 1109 | September 5 | "Dynamite" | BTS |
| 1109 | September 12 | "Dynamite" | BTS |
| re | September 19 | "WAP" | Cardi B featuring Megan Thee Stallion |
| re | September 26 | "WAP" | Cardi B featuring Megan Thee Stallion |
| re | October 3 | "Dynamite" | BTS |
| 1110 | October 10 | "Franchise" | Travis Scott featuring Young Thug and M.I.A. |
| 1111 | October 17 | "Savage Love (Laxed – Siren Beat)" | Jawsh 685, Jason Derulo and BTS |
| 1112 | October 24 | "Mood" | 24kGoldn featuring Iann Dior |
| 1112 | October 31 | "Mood" | 24kGoldn featuring Iann Dior |
| 1113 | November 7 | "Positions" | Ariana Grande |
| re | November 14 | "Mood" | 24kGoldn featuring Iann Dior |
| re | November 21 | "Mood" | 24kGoldn featuring Iann Dior |
| re | November 28 | "Mood" | 24kGoldn featuring Iann Dior |
| 1114 | December 5 | "Life Goes On" | BTS |
| re | December 12 | "Mood" | 24kGoldn featuring Iann Dior |
| re | December 19 | "All I Want for Christmas Is You" | Mariah Carey |
| 1115 | December 26 | "Willow" | Taylor Swift |

## Number-one artists

List of number-one artists by total weeks at number one :
| Position | Artist | Weeks at No. 1 |
| 1 | Roddy Ricch | 18 |
| 2 | DaBaby | 7 |
| 3 | 24kGoldn | 6 |
| 3 | Iann Dior | 6 |
| 5 | Megan Thee Stallion | 5 |
| 5 | BTS | 5 |
| 7 | The Weeknd | 4 |
| 7 | Cardi B | 4 |
| 9 | Ariana Grande | 3 |
| 10 | Mariah Carey | 2 |
| 10 | Travis Scott | 2 |
| 10 | Nicki Minaj | 2 |
| 10 | Taylor Swift | 2 |
| 14 | Post Malone | 1 |
| 14 | Drake | 1 |
| 14 | Kid Cudi | 1 |
| 14 | Doja Cat | 1 |
| 14 | Justin Bieber | 1 |
| 14 | Beyoncé | 1 |
| 14 | Lady Gaga | 1 |
| 14 | 6ix9ine | 1 |
| 14 | Harry Styles | 1 |
| 14 | Young Thug | 1 |
| 14 | M.I.A. | 1 |
| 14 | Jawsh 685 | 1 |
| 14 | Jason Derulo | 1 |