In reply to Susan.

The top 5 best selling singles of 2019 WW, according to IFPI:

#1. Bad Guy — 19.5 MILLION
#2. Old Town Road — 18.4 MILLION
#3. Señorita — 16.1 MILLION
#4. Sunflower — 13.4 MILLION
#5. 7 Rings — 13.3 MILLION