List of Billboard Mainstream Top 40 number-one songs of 2009
From Wikipedia, the free encyclopedia
This is a list of songs which reached number one on the Billboard Mainstream Top 40 (or Pop Songs) chart in 2009.
During 2009, a total of 20 singles hit number-one on the charts.
Chart history
| Issue date | Song | Artist(s) | Ref. |
|---|---|---|---|
| January 3 | "Womanizer" | Britney Spears | [1] |
| January 10 | "Live Your Life" | T.I. featuring Rihanna | [2] |
| January 17 | "Womanizer" | Britney Spears | [3] |
| January 24 | "Just Dance" | Lady Gaga featuring Colby O'Donis | [4] |
| January 31 | [5] | ||
| February 7 | "Single Ladies (Put a Ring on It)" | Beyoncé | [6] |
| February 14 | [7] | ||
| February 21 | [8] | ||
| February 28 | "Love Story" | Taylor Swift | [9] |
| March 7 | "Circus" | Britney Spears | [10] |
| March 14 | "Gives You Hell" | The All-American Rejects | [11] |
| March 21 | [12] | ||
| March 28 | [13] | ||
| April 4 | [14] | ||
| April 11 | "Right Round" | Flo Rida featuring Ke$ha | [15] |
| April 18 | [16] | ||
| April 25 | "Poker Face" | Lady Gaga | [17] |
| May 2 | [18] | ||
| May 9 | [19] | ||
| May 16 | [20] | ||
| May 23 | [21] | ||
| May 30 | "Boom Boom Pow" | The Black Eyed Peas | [22] |
| June 6 | [23] | ||
| June 13 | [24] | ||
| June 20 | [25] | ||
| June 27 | [26] | ||
| July 4 | [27] | ||
| July 11 | [28] | ||
| July 18 | "Don't Trust Me" | 3OH!3 | [29] |
| July 25 | "LoveGame" | Lady Gaga | [30] |
| August 1 | [31] | ||
| August 8 | "Waking Up in Vegas" | Katy Perry | [32] |
| August 15 | [33] | ||
| August 22 | "I Gotta Feeling" | The Black Eyed Peas | [34] |
| August 29 | [35] | ||
| September 5 | [36] | ||
| September 12 | [37] | ||
| September 19 | [38] | ||
| September 26 | [39] | ||
| October 3 | [40] | ||
| October 10 | "Use Somebody" | Kings of Leon | [41] |
| October 17 | "Down" | Jay Sean featuring Lil Wayne | [42] |
| October 24 | [43] | ||
| October 31 | [44] | ||
| November 7 | "Party in the U.S.A." | Miley Cyrus | [45] |
| November 14 | "Paparazzi" | Lady Gaga | [46] |
| November 21 | [47] | ||
| November 28 | "Whatcha Say" | Jason Derülo | [48] |
| December 5 | [49] | ||
| December 12 | [50] | ||
| December 19 | [51] | ||
| December 26 | "Replay" | Iyaz | [52] |