Gregory Allen Kurstin is an American record producer, multi-instrumentalist, and songwriter. He has won nine Grammy Awards, including Producer of the Year, Non-Classical in 2017 and 2018, and contributed to four songs which peaked atop the Billboard Hot 100.

30 is the fourth studio album by the English singer and songwriter Adele. It was released on 19 November 2021 by Columbia Records. Her first studio album in six years following 25 (2015), 30 was inspired by Adele's experiences and anxiety following her divorce and its impact on her son's life, along with motherhood and fame. Adele had begun working on the album in 2018 and collaborated with producers such as Greg Kurstin, Max Martin, Inflo, Tobias Jesso Jr., Ludwig Göransson, Shawn Everett, and Shellback. Musically, 30 is a pop, soul, and jazz album, which incorporates dance-pop, gospel, and R&B elements. The album was promoted with the television specials Adele One Night Only and An Audience with Adele. Three singles were released from the album. The lead single, "Easy on Me", reached number one in several countries, including the US and UK. The follow-up singles, "Oh My God" and "I Drink Wine", charted in the UK chart's top five simultaneously with it.