Number One Song This lists songs that hit number one on the charts in the US during 2009. If a song spent nonconsecutive weeks at number one, the number of weeks for each occurrence at the top is shown in parenthesis.
Play a medleyPlay a medley of these number one songs  Length: 1:06
« 2008 2009 Number One Songs 2010 »
Date Artist - Title Weeks
at #1
« 2008 2009 Number One Songs 2010 »
Beyonce - Single Ladies (Put A Ring On It) 4 (3)
Lady Gaga feat. Colby O'Donis - Just Dance 3
Kelly Clarkson - My Life Would Suck Without You 2
Eminem, Dr. Dre and 50 Cent - Crack a Bottle 1
Flo Rida - Right Round 6
Lady Gaga - Poker Face 1
Black Eyed Peas - Boom Boom Pow 12
Black Eyed Peas - I Gotta Feeling 14
Jay Sean feat. Lil Wayne - Down 2 (1)
Britney Spears - 3 1
Jay Sean feat. Lil Wayne - Down 2 (1)
Owl City - Fireflies 2 (1)
Jason DeRulo - Whatcha Say 1
Owl City - Fireflies 2 (1)
Jay-Z and Alicia Keys - Empire State of Mind 5
Ke$ha - TiK ToK 9
Source: Billboard

14 different songs hit number one in the US during 2009.

Top 5 Songs of 2009

Number One Song of 2009: Black Eyed Peas  - Boom Boom Pow
  1. Black Eyed Peas - Boom Boom Pow
  2. Lady Gaga - Poker Face
  3. Lady Gaga feat. Colby O'Donis - Just Dance
  4. Black Eyed Peas - I Gotta Feeling
  5. Taylor Swift - Love Story
See the rest of the top 100 songs of 2009.