Andrew Wotman (born October 20, 1990), known professionally as Andrew Watt, is an American record producer, singer, songwriter, and multi-instrumentalist.Watt's debut solo single "Ghost in My Head" reached No. 30 on the Billboard Mainstream Rock chart in 2016. Watt won the 2021 Grammy Award for Producer of the Year. He has produced albums for Justin Bieber, Miley Cyrus, Ozzy Osbourne, Pearl Jam, Iggy Pop and many others. Watt is also the guitarist of the Earthlings, the backing band for Eddie Vedder's solo performances.

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