Mike Lévy (French pronunciation: ​[majk levi]; born 24 June 1987), known professionally as Gesaffelstein (German pronunciation: [ɡəˈzafl̩ʃtaɪ̯n]), is a French music programmer, DJ, songwriter and record producer from Lyon. He has worked alongside artists such as The Weeknd, Daft Punk, Kanye West, A$AP Rocky, Electric Youth, Haim, Miss Kittin, The Hacker, Jean-Michel Jarre and Pharrell Williams.

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