Dan Griffith (born September 29, 1987), known by his stage name Gryffin (often stylized in all caps), is an American musician, DJ, songwriter, and record producer. He gained recognition for remixing some well-known songs such as Tove Lo's "Talking Body", Maroon 5's "Animals" and Years & Years' "Desire".

Source: Wikipedia (https://en.wikipedia.org/wiki/Gryffin)