Jack Michael Antonoff is an American singer, multi-instrumentalist, songwriter, and record producer. Antonoff is the lead singer of rock band Bleachers, and is the guitarist and drummer in the pop rock band Fun. He was previously the lead singer of the indie rock band Steel Train.
Aside from his work with Bleachers and Fun, Antonoff has worked as a songwriter and record producer with various artists, including Taylor Swift, The 1975, Lorde, St. Vincent, Florence and the Machine, Lana Del Rey, Fifth Harmony, Kevin Abstract, Carly Rae Jepsen, The Chicks, Tegan and Sara and Clairo. Antonoff has often been credited with having a significant impact on the sound of contemporary popular music since the mid-2010s.
Antonoff has been nominated for a Golden Globe Award and won eight Grammy Awards, including the 2022 and 2023 Grammy for Producer of the Year. He has also won Grammy Awards for his work with Fun, for production on Swift's albums 1989 and Folklore, for production on St. Vincent's album Daddy's Home, and for co-writing the title track on St. Vincent's Masseduction.