No. 1 songs of 2009

January 2009

1. Born Jan 3–9Single Ladies (Put a Ring on It) · Beyoncé
2. Born Jan 10–16Single Ladies (Put a Ring on It) · Beyoncé
3. Born Jan 17–23Just Dance · Lady Gaga featuring Colby O'Donis
4. Born Jan 24–30Just Dance · Lady Gaga featuring Colby O'Donis
5. Born Jan 31 – Feb 6Just Dance · Lady Gaga featuring Colby O'Donis

February 2009

1. Born Feb 7–13My Life Would Suck Without You · Kelly Clarkson
2. Born Feb 14–20My Life Would Suck Without You · Kelly Clarkson
3. Born Feb 21–27Crack a Bottle · Eminem, Dr. Dre and 50 Cent
4. Born Feb 28 – Mar 6Right Round · Flo Rida

March 2009

1. Born Mar 7–13Right Round · Flo Rida
2. Born Mar 14–20Right Round · Flo Rida
3. Born Mar 21–27Right Round · Flo Rida
4. Born Mar 28 – Apr 3Right Round · Flo Rida

April 2009

1. Born Apr 4–10Right Round · Flo Rida
2. Born Apr 11–17Poker Face · Lady Gaga
3. Born Apr 18–24Boom Boom Pow · The Black Eyed Peas
4. Born Apr 25 – May 1Boom Boom Pow · The Black Eyed Peas

May 2009

1. Born May 2–8Boom Boom Pow · The Black Eyed Peas
2. Born May 9–15Boom Boom Pow · The Black Eyed Peas
3. Born May 16–22Boom Boom Pow · The Black Eyed Peas
4. Born May 23–29Boom Boom Pow · The Black Eyed Peas
5. Born May 30 – Jun 5Boom Boom Pow · The Black Eyed Peas

June 2009

1. Born Jun 6–12Boom Boom Pow · The Black Eyed Peas
2. Born Jun 13–19Boom Boom Pow · The Black Eyed Peas
3. Born Jun 20–26Boom Boom Pow · The Black Eyed Peas
4. Born Jun 27 – Jul 3Boom Boom Pow · The Black Eyed Peas

July 2009

1. Born Jul 4–10Boom Boom Pow · The Black Eyed Peas
2. Born Jul 11–17I Gotta Feeling · The Black Eyed Peas
3. Born Jul 18–24I Gotta Feeling · The Black Eyed Peas
4. Born Jul 25–31I Gotta Feeling · The Black Eyed Peas

August 2009

1. Born Aug 1–7I Gotta Feeling · The Black Eyed Peas
2. Born Aug 8–14I Gotta Feeling · The Black Eyed Peas
3. Born Aug 15–21I Gotta Feeling · The Black Eyed Peas
4. Born Aug 22–28I Gotta Feeling · The Black Eyed Peas
5. Born Aug 29 – Sep 4I Gotta Feeling · The Black Eyed Peas

September 2009

1. Born Sep 5–11I Gotta Feeling · The Black Eyed Peas
2. Born Sep 12–18I Gotta Feeling · The Black Eyed Peas
3. Born Sep 19–25I Gotta Feeling · The Black Eyed Peas
4. Born Sep 26 – Oct 2I Gotta Feeling · The Black Eyed Peas

October 2009

1. Born Oct 3–9I Gotta Feeling · The Black Eyed Peas
2. Born Oct 10–16I Gotta Feeling · The Black Eyed Peas
3. Born Oct 17–23Down · Jay Sean featuring Lil Wayne
4. Born Oct 24–303 · Britney Spears
5. Born Oct 31 – Nov 6Down · Jay Sean featuring Lil Wayne

November 2009

1. Born Nov 7–13Fireflies · Owl City
2. Born Nov 14–20Whatcha Say · Jason Derulo
3. Born Nov 21–27Fireflies · Owl City
4. Born Nov 28 – Dec 4Empire State of Mind · Jay-Z and Alicia Keys

December 2009

1. Born Dec 5–11Empire State of Mind · Jay-Z and Alicia Keys
2. Born Dec 12–18Empire State of Mind · Jay-Z and Alicia Keys
3. Born Dec 19–25Empire State of Mind · Jay-Z and Alicia Keys
4. Born Dec 26 – Jan 1Empire State of Mind · Jay-Z and Alicia Keys