Crowned the most-played artist of 2019 for the fourth year in a row, Ed Sheeran, the grammy-award winning singer who has sold millions of records on the strength of hit singles such as 'The A-Team' and 'Thinking Out Loud,' has dominated the music industry for an unbelievable 5 years. What is the key to the pop star’s worldwide popularity? Here’s why there’s only one Ed Sheeran.