American record producer and songwriter Jack Antonoff has released four studio albums and one soundtrack under the solo project Bleachers, and 10 studio albums, collectively, among his bands: fun., Steel Train, and Outline. He has also served as the co-writer or co-producer on albums by Taylor Swift, The 1975, Florence + the Machine, Lorde, Kevin Abstract, Sabrina Carpenter, Clairo, The Chicks, Lana Del Rey, and St. Vincent, and has written and produced individual tracks with artists including Pink, Paramore, Sara Bareilles, Maren Morris, Troye Sivan, Carly Rae Jepsen, Kendrick Lamar, Gracie Abrams, and Sia, among many others.