Gregory Allen "Greg" Kurstin (born May 14, 1969) is an American record producer, songwriter and multi-instrumentalist. Described as "the consummate DIY writer and producer," Kurstin has been associated with releases which have cumulatively sold more than 60 million albums worldwide. He has won three Ivor Novello Awards and been nominated for 10 Grammy Awards, including Producer of the Year in 2010, 2014, and 2017.