List of Billboard Hot 100 number-ones by European artists

Columns: Artist | Country | Number one hits
The Beatles | United Kingdom | 20 | George Michael | United Kingdom | 10 | Bee Gees | United Kingdom Australia | 9 | Elton John | United Kingdom | 9 | Paul McCartney | United Kingdom | 9 | Roxette | Sweden | 4 | Milli Vanilli | Germany | 3 | Enrique Iglesias | Spain | 2 | U2 | Ireland | 2

Example questions:
What was the first stage name used by the Spanish singer who was on list that had the most number one hits by a European artist ? | Which member of the German band who was on list that had the most number one hits by a European artist died when he was in his 30s ? | What was the birth name of the singer with 10 number one hits by a European artist on the Billboard Hot 100 ? | What was the name of the third album recorded by the Swedish band who was on list that had the most number one hits by a European artist | Who was the manager of the band with the most number one hits by a European artist on Billboard Hot 100 ?

Answers:
Enrique Martinez | Rob Pilatus | Georgios Kyriacos Panayiotou | Joyride | Brian Epstein