"On the day of the mass murder of 11 people in the hands of a disturbed" nationalist "you played his song" Happy "to a crowd at a political event in Indiana," King wrote in the letter. "There was nothing 'happy' about the tragedy inflicted on our country on Saturday, and no permission was given to use that song for this purpose."
King claims that the use of "Happy" without consent constitutes both copyright and trademark
"Pharrell has and will not give you permission to publicly perform or otherwise distribute or distribute its music," wrote King ,
This is not the first time that Trump has received Flak from angry musicians after using their music without permission. The Rolling Stones, O & Jays, Adele, Queen, and a few others have asked Trump to stop listening to their music.