The #1 R&B song on January 20, 2009

Single Ladies (Put a Ring on It) By Beyoncé

Other #1 songs on January 20, 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 20 birthdays in the 2000s

Antonia Gigovska
World Music Singer
Born January 20, 2001
Notlim Taylor
TV Actress
Born January 20, 2002
Jo Woo-chan
Rapper
Born January 20, 2005
Taniah Tomlinson
Gymnast
Born January 20, 2008
Mike Singer
Pop Singer
Born January 20, 2000