Complex sentence: Dancing Queen was written by Benny Andersson, Björn Ulvaeus, and Stig Anderson and is considered by many to be ABBA's signature song as it reached the number 1 position on popular music charts in 13 countries.
Split into simpler sentences: Dancing Queen was written by Benny Andersson, Björn Ulvaeus and Stig Anderson and is considered by many to be ABBA's signature song. It reached the number 1 position on the popular music charts in 13 countries.