Other #1 songs on January 20, 2009
Across genres and charts

#1 alternative hit

Sex on Fire

Kings of Leon

#1 country song

Start a Band

Brad Paisley duet with Keith Urban

#1 R&B song

Single Ladies (Put a Ring on It)

Beyoncé

#1 song in the UK

Just Dance

Lady Gaga featuring Colby O'Donis

#1 song

Just Dance

Lady Gaga featuring Colby O'Donis

The #1 Movie
At the box office on January 20, 2009

Paul Blart: Mall Cop

Directed by Steve Carr

Notable January 20 Birthdays
Born in the 2000s

Tyler Herro

Basketball Player

Born January 20, 2000

J. J. McCarthy

Football Player

Born January 20, 2003