Every number one of 2009

15 different songs reached #1. Longest run: I Gotta Feeling, 14 weeks in a row.

  1. 1 Single Ladies (Put a Ring on It) Beyoncé Jan 3 to Jan 10 · 2 weeks (3 in a row)
  2. 2 Just Dance Lady Gaga featuring Colby O'Donis Jan 17 to Jan 31 · 3 weeks
  3. 3 My Life Would Suck Without You Kelly Clarkson Feb 7 to Feb 14 · 2 weeks
  4. 4 Search ↗ Crack a Bottle Eminem, Dr. Dre and 50 Cent Feb 21 · 1 week
  5. 5 Right Round Flo Rida Feb 28 to Apr 4 · 6 weeks
  6. 6 Poker Face Lady Gaga Apr 11 · 1 week
  7. 7 Boom Boom Pow The Black Eyed Peas Apr 18 to Jul 4 · 12 weeks
  8. 8 I Gotta Feeling The Black Eyed Peas Jul 11 to Oct 10 · 14 weeks
  9. 9 Down Jay Sean featuring Lil Wayne Oct 17 · 1 week
  10. 10 3 Britney Spears Oct 24 · 1 week
  11. 11 Down Jay Sean featuring Lil Wayne Oct 31 · 1 week
  12. 12 Fireflies Owl City Nov 7 · 1 week
  13. 13 Whatcha Say Jason Derulo Nov 14 · 1 week
  14. 14 Fireflies Owl City Nov 21 · 1 week
  15. 15 Search ↗ Empire State of Mind Jay-Z and Alicia Keys Nov 28 to Dec 26 · 5 weeks

The numbers beside each song count the year's number ones in order. Weeks are counted from the Billboard Hot 100 charts dated in 2009.