# List of Billboard Streaming Songs number ones of 2021

This is a list of songs that reached number one on the Billboard magazine Streaming Songs chart in 2021.

## Chart history

Key :
* The best-performing single of 2021, "Levitating" by Dua Lipa, never reached number one on the chart.
| Issue date | Song | Artist(s) | Weekly streams |
| January 2 | "All I Want for Christmas Is You" | Mariah Carey | 54.9 million |
| January 9 | "All I Want for Christmas Is You" | Mariah Carey | 22.7 million |
| January 16 | "Mood" | 24kGoldn featuring Iann Dior | 17.5 million |
| January 23 | "Drivers License" | Olivia Rodrigo | 76.1 million |
| January 30 | "Drivers License" | Olivia Rodrigo | 59.7 million |
| February 6 | "Drivers License" | Olivia Rodrigo | 42.6 million |
| February 13 | "Drivers License" | Olivia Rodrigo | 32.2 million |
| February 20 | "Up" | Cardi B | 31.2 million |
| February 27 | "Calling My Phone" | Lil Tjay and 6lack | 34 million |
| March 6 | "Calling My Phone" | Lil Tjay and 6lack | 25.4 million |
| March 13 | "Up" | Cardi B | 23.9 million |
| March 20 | "What's Next" | Drake | 49.1 million |
| March 27 | "What's Next" | Drake | 23 million |
| April 3 | "Peaches" | Justin Bieber featuring Daniel Caesar and Giveon | 30.6 million |
| April 10 | "Montero (Call Me by Your Name)" | Lil Nas X | 46.9 million |
| April 17 | "Montero (Call Me by Your Name)" | Lil Nas X | 38.1 million |
| April 24 | "Rapstar" | Polo G | 53.6 million |
| May 1 | "Rapstar" | Polo G | 40.3 million |
| May 8 | "Rapstar" | Polo G | 34.5 million |
| May 15 | "Rapstar" | Polo G | 29.5 million |
| May 22 | "Interlude" | J. Cole | 26.6 million |
| May 29 | "Good 4 U" | Olivia Rodrigo | 43.2 million |
| June 5 | "Good 4 U" | Olivia Rodrigo | 62.7 million |
| June 12 | "Good 4 U" | Olivia Rodrigo | 49.5 million |
| June 19 | "Good 4 U" | Olivia Rodrigo | 42.1 million |
| June 26 | "Good 4 U" | Olivia Rodrigo | 36 million |
| July 3 | "Good 4 U" | Olivia Rodrigo | 32 million |
| July 10 | "Good 4 U" | Olivia Rodrigo | 30.2 million |
| July 17 | "Good 4 U" | Olivia Rodrigo | 27.6 million |
| July 24 | "Stay" | The Kid Laroi and Justin Bieber | 34.7 million |
| July 31 | "Stay" | The Kid Laroi and Justin Bieber | 28.6 million |
| August 7 | "Industry Baby" | Lil Nas X and Jack Harlow | 40.6 million |
| August 14 | "Stay" | The Kid Laroi and Justin Bieber | 30.9 million |
| August 21 | "Stay" | The Kid Laroi and Justin Bieber | 31.8 million |
| August 28 | "Stay" | The Kid Laroi and Justin Bieber | 32.7 million |
| September 4 | "Stay" | The Kid Laroi and Justin Bieber | 31.7 million |
| September 11 | "Hurricane" | Kanye West | 29 million |
| September 18 | "Way 2 Sexy" | Drake featuring Future and Young Thug | 67.3 million |
| September 25 | "Way 2 Sexy" | Drake featuring Future and Young Thug | 39.9 million |
| October 2 | "Way 2 Sexy" | Drake featuring Future and Young Thug | 32.5 million |
| October 9 | "Way 2 Sexy" | Drake featuring Future and Young Thug | 27.6 million |
| October 16 | "Way 2 Sexy" | Drake featuring Future and Young Thug | 23.4 million |
| October 23 | "Industry Baby" | Lil Nas X and Jack Harlow | 23.2 million |
| October 30 | "Easy on Me" | Adele | 53.9 million |
| November 6 | "Easy on Me" | Adele | 31.8 million |
| November 13 | "Easy on Me" | Adele | 25.8 million |
| November 20 | "Easy on Me" | Adele | 23.6 million |
| November 27 | "All Too Well (Taylor's Version)" | Taylor Swift | 54.4 million |
| December 4 | "Easy on Me" | Adele | 37.5 million |
| December 11 | "All I Want for Christmas Is You" | Mariah Carey | 25.8 million |
| December 18 | "All I Want for Christmas Is You" | Mariah Carey | 32.5 million |
| December 25 | "All I Want for Christmas Is You" | Mariah Carey | 37.6 million |