Greg Kurstin

Gregory Allen Kurstin is an American record producer, multi-instrumentalist and songwriter. He has been associated with releases which have cumulatively sold more than 85 million albums worldwide. He has won seven Grammy Awards, including Producer of the Year in 2017 and 2018.
Kurstin co-wrote, produced and played most of the instruments on the record-breaking 2015 Adele single "Hello". Among others, he has worked with Sia, Celine Dion, Beck, Kelly Clarkson, Paul McCartney, Pink, Liam Gallagher, Zayn Malik, Lily Allen, and the Foo Fighters. He often plays guitar, bass, keyboards and drums, and engineers and programs the records he produces.
Kurstin began his career as a jazz pianist and later co-founded Geggy Tah. He has collaborated with Inara George in The Bird and the Bee since 2004.