List of best-selling singles by year (Germany)

Columns: # | Artist | Artist 's nationality | Title
8 | Amy Macdonald | United Kingdom | This Is the Life | 9 | Madonna featuring Justin Timberlake and Timbaland | United States | 4 Minutes | 10 | Gabriella Cilmi | Australia | Sweet About Me | 11 | Stefanie Heinzmann | Switzerland | My Man Is a Mean Man | 12 | Ich + Ich | Germany | Stark | 13 | Polarkreis 18 | Germany | Allein , Allein | 14 | Mark Ronson featuring Amy Winehouse | United Kingdom | Valerie

Example questions:
Where did the best-selling singles by year singer in 2008 of Bleeding Love attend school ? | Who is the youngest best-selling singles in 2008 by year artist that contributed to the song 4 Minutes ? | What is the birth name of the best-selling singles by year singer of So What in 2008 ? | What is the birth name for the best-selling singles in 2008 by year artist who recorded All Summer Long ?

Answers:
BRIT School for Performing Arts and Technology | Justin Timberlake | Alecia Beth Moore | Robert James Ritchie