# List of Billboard Mainstream Top 40 number-one songs of 2013

This is a list of songs which reached number one on the Billboard Mainstream Top 40 (or Pop Songs) chart in 2013.
During 2013, a total of 16 singles hit number-one on the charts.

## Chart history

Key :
| † | Indicates best-performing single of 2013 |
| Issue date | Song | Artist(s) |
| January 5 | "Locked Out of Heaven" | Bruno Mars |
| January 12 | "Locked Out of Heaven" | Bruno Mars |
| January 19 | "Locked Out of Heaven" | Bruno Mars |
| January 26 | "Locked Out of Heaven" | Bruno Mars |
| February 2 | "I Knew You Were Trouble" | Taylor Swift |
| February 9 | "I Knew You Were Trouble" | Taylor Swift |
| February 16 | "I Knew You Were Trouble" | Taylor Swift |
| February 23 | "I Knew You Were Trouble" | Taylor Swift |
| March 2 | "I Knew You Were Trouble" | Taylor Swift |
| March 9 | "I Knew You Were Trouble" | Taylor Swift |
| March 16 | "I Knew You Were Trouble" | Taylor Swift |
| March 23 | "Thrift Shop" | Macklemore & Ryan Lewis featuring Wanz |
| March 30 | "Thrift Shop" | Macklemore & Ryan Lewis featuring Wanz |
| April 6 | "Daylight" | Maroon 5 |
| April 13 | "When I Was Your Man" | Bruno Mars |
| April 20 | "When I Was Your Man" | Bruno Mars |
| April 27 | "When I Was Your Man" | Bruno Mars |
| May 4 | "Stay" | Rihanna featuring Mikky Ekko |
| May 11 | "Stay" | Rihanna featuring Mikky Ekko |
| May 18 | "Just Give Me a Reason" | P!nk featuring Nate Ruess |
| May 25 | "Just Give Me a Reason" | P!nk featuring Nate Ruess |
| June 1 | "Mirrors" | Justin Timberlake |
| June 8 | "Mirrors" | Justin Timberlake |
| June 15 | "Mirrors" | Justin Timberlake |
| June 22 | "Can't Hold Us" | Macklemore & Ryan Lewis featuring Ray Dalton |
| June 29 | "Can't Hold Us" | Macklemore & Ryan Lewis featuring Ray Dalton |
| July 6 | "Can't Hold Us" | Macklemore & Ryan Lewis featuring Ray Dalton |
| July 13 | "Can't Hold Us" | Macklemore & Ryan Lewis featuring Ray Dalton |
| July 20 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| July 27 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| August 3 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| August 10 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| August 17 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| August 24 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| August 31 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| September 7 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| September 14 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| September 21 | "Blurred Lines" † | Robin Thicke featuring T.I. & Pharrell Williams |
| September 28 | "Roar" | Katy Perry |
| October 5 | "Roar" | Katy Perry |
| October 12 | "Roar" | Katy Perry |
| October 19 | "Roar" | Katy Perry |
| October 26 | "Roar" | Katy Perry |
| November 2 | "Royals" | Lorde |
| November 9 | "Wake Me Up!" | Avicii |
| November 16 | "Wake Me Up!" | Avicii |
| November 23 | "Wake Me Up!" | Avicii |
| November 30 | "Wrecking Ball" | Miley Cyrus |
| December 7 | "Wrecking Ball" | Miley Cyrus |
| December 14 | "Demons" | Imagine Dragons |
| December 21 | "The Monster" | Eminem featuring Rihanna |
| December 28 | "The Monster" | Eminem featuring Rihanna |