Efrat Gosh was born in Herzliya. She studied in the music department of Alon high school in Ramat Hasharon.

She continued her education at the Rimon School of Jazz and Contemporary Music, focusing on Jazz. She cites Billie Holiday, Edith Piaf, Louis Armstrong and Charlie Parker as musical influences. Gosh's music career began when she recorded a demo with Yoni Bloch of a song written for Nurit Galron.