The #1 song in the UK on January 21, 2019

Sweet but Psycho By Ava Max

Other #1 songs on January 21, 2019

#1 Hit Song

Without Me
Halsey

#1 R&B Song

Sunflower
Post Malone and Swae Lee

#1 Country Song

Sixteen
Thomas Rhett

#1 Alternative Hit

Guiding Light
Mumford & Sons

#1 Dance Track

Self Control
Kendra Erika