List of best-selling singles

Columns: Artist | Single | Released | Sales ( in millions )
Twenty One Pilots | Stressed Out | 2015 | 9.9 | P ! nk featuring Nate Ruess | Just Give Me a Reason | 2013 | 9.9 | Katy Perry | Roar | 2013 | 9.9 | Bruno Mars | That 's What I Like | 2017 | 9.7 | Marshmello and Anne-Marie | Friends | 2018 | 9.6 | fun . featuring Janelle Monáe | We Are Young | 2011 | 9.6 | Pitbull featuring Kesha | Timber | 2013 | 9.6

Example questions:
When was the best-selling digital single by the duo from Columbus , Ohio released ? | Which best-selling digital single was recorded by the singer known as the Queen of Pop ? | What was the sales in millions of the best-selling digital song from the album Blurryface ? | Which best-selling digital single was recorded by the artist born on October 8 , 1985 ? | What was the sales in millions of the best-selling digital song recorded by an American singer-songwriter for her fifth studio album ?

Answers:
2015 | Hung Up | 9.9 | That 's What I Like | 9.2