The #1 R&B song on January 21, 2009

Single Ladies (Put a Ring on It) By Beyoncé

Other #1 songs on January 21, 2009

#1 Hit Song

Just Dance
Lady Gaga featuring Colby O'Donis

UK #1 Song

Just Dance
Lady Gaga featuring Colby O'Donis

#1 Country Song

Start a Band
Brad Paisley duet with Keith Urban

#1 Alternative Hit

Sex on Fire
Kings of Leon

#1 Dance Track

Human
The Killers

Notable January 21 birthdays in the 2000s

Princess Ingrid Alexandra
Princess
Born January 21, 2004
Papa Jay
Rapper
Born January 21, 2008
Jackson Brundage
TV Actor
Born January 21, 2001
Lindsey Lamer
TV Actress
Born January 21, 2007
Ben Carolan
Movie Actor
Born January 21, 2000
Mackenzie Clynes
Movie Actress
Born January 21, 2003
Zoey Diaz
TV Actress
Born January 21, 2005