The #1 dance song on May 21, 2015

Chains By Nick Jonas

Other #1 songs on May 21, 2015

#1 Hit Song

See You Again
Wiz Khalifa featuring Charlie Puth

UK #1 Song

Cheerleader
OMI

#1 R&B Song

See You Again
Wiz Khalifa featuring Charlie Puth

#1 Country Song

Girl Crush
Little Big Town

#1 Alternative Hit

Dead Inside
Muse

Notable May 21 birthdays in the 2010s

Turbo Two Legs
Cat
Born May 21, 2016