LOWER MANHATTAN -- Ed Sheeran picked up his guitar and performed a mash-up of his songs and Marvin Gaye's as he tried to demonstrate how common the four-chord progression is for his hit "Thinking Out ...

The singer performed a few words of his hit "Thinking Out Loud" with a guitar in a courtroom during a trial involving allegations he used part of a Marvin Gaye classic protected by copyright. Jurors ...