List of best-selling singles

Columns: Artist | Single | Released | Sales ( in millions )
DJ Khaled featuring Justin Bieber , Quavo , Chance the Rapper and Lil Wayne | I 'm the One | 2017 | 7.9 | Rihanna featuring Mikky Ekko | Stay | 2013 | 7.9 | Imagine Dragons | Believer | 2017 | 7.8 | Leona Lewis | Bleeding Love | 2008 | 7.7 | Greeeen | Kiseki | 2008 | 7.6 | Busker Busker | Cherry Blossom Ending | 2012 | 7.5 | Lady Gaga featuring Beyoncé | Telephone | 2010 | 7.4

Example questions:
What was the 2009 mixtape of the rapper with the best selling digital single Starships ? | Which best selling digital single of the band with the single Believer was on the Billboard Hot 100 the most weeks ? | What year did the band with the best selling digital single Cherry Blossom Ending disband ? | What is the catchphrase of the group with the best selling digital single Kiseki ? | What singer did the singer with the best selling digital single Bleeding Love cover on the single A Moment Like This ?

Answers:
Beam Me Up Scotty | Radioactive | 2013 | Rock ' n ' Breakbeats with Four Microphones | Kelly Clarkson