The #1 song on January 20, 2009

Just Dance By Lady Gaga featuring Colby O'Donis

Other #1 songs on January 20, 2009

UK #1 Song

Just Dance
Lady Gaga featuring Colby O'Donis

#1 R&B Song

Single Ladies (Put a Ring on It)
Beyoncé

#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

Jaylynn
R&B Singer
Born January 20, 2002
Mathieu Muyumba
Rapper
Born January 20, 2000
Avery Phillips
TV Actress
Born January 20, 2005
Taniah Tomlinson
Gymnast
Born January 20, 2008
Antonia Gigovska
World Music Singer
Born January 20, 2001