"Singular: Act I" is the third full length studio album by American singer Sabrina Carpenter. It was released on November 9, 2018, through Hollywood Records. The album is the follow-up to her 2016 studio album, Evolution. Carpenter began writing the album in 2016, shortly after the launch of Evolution but she only began to record the songs in 2017. The album features eight songs, all of which she co-wrote.