Frankie Cosmos is the stage name of Franklyn James Costello, an American singer-songwriter and musician from New York known for her bedroom pop and indie rock music. She rose to prominence in the mid-2010s with lo-fi bedroom recordings and has released several albums including 'Vessel' (2017) and 'Skipping Stones' (2024). Her music is characterized by intimate vocals, introspective lyrics, and a DIY aesthetic.