List of best-selling singles

Columns: Artist | Single | Released | Sales ( in millions )
Tom Jones | Delilah | 1968 | 5 | Jerry Lee Lewis | Great Balls of Fire | 1957 | 5 | Kaoma | Lambada | 1989 | 5 | Madonna | Like a Prayer | 1989 | 5 | Ricky Martin | María | 1995 | 5 | Michael Zager Band | Let 's All Chant | 1977 | 5

Example questions:
Which best selling single was released by a Welsh artist with knighthood ? | Which best selling single was released by an artist born on 29 April 1907 ? | What were the sales in millions of the best selling single written by Bob Crewe and Kenny Nolan ? | What were the sales in millions of the best selling single by a German musical project founded in 1990 ?

Answers:
Delilah | Petit Papa Noël | 5.5 | 5