The #1 song on May 31, 2015

Bad Blood By Taylor Swift featuring Kendrick Lamar

Other #1 songs on May 31, 2015

UK #1 Song

Want to Want Me
Jason Derulo

#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

#1 Dance Track

The Giver (Reprise)
Duke Dumont