Cassie Grzymkowski, better known by her stage name Cassie Ramone, is an American musician and artist. Ramone rose to prominence as the guitarist and vocalist of indie rock band Vivian Girls, who broke up in 2014, and later reformed in 2019. She also formed the band project The Babies with Kevin Morby. During The Babies' hiatus, Ramone embarked on a solo career, releasing her debut album The Time Has Come in August 2014.

Vivian Girls is an American band based in Brooklyn, New York. The only consistent members have been Cassie Ramone and Katy Goodman, on guitar and bass, respectively; the group has had several drummers throughout its history. They took their name from a book by outsider artist Henry Darger.