The January 25 release features several covers, including Bob Marley's 'Is This Love', Doris Day and Sly & The Family Stone's 'Que Sera Sera', Paul McCartney's 'My Love', Prince's 'I Wanna Be Your Lover' and Belly's 'Low Red Moon'.
Rae told The Idolator that the EP had a "good mixture" of song, adding: "I just thought about that song 'Is This Love' and how poignant it sounds and how it feels when it's stretched out at that tempo.
"When it's the start of a relationship and it's this questioning - 'Is this love? Is this it? Is this what it feels like?' - it's just so tentative.
"And I love the descriptions in the song, and I think it's amazing, the idea of two people against the world in poverty and the idea that love is everything that you need."
Of the Prince song, she added: "It's just really fun! I thought, I never get to do really fun, synthy, aggressive bright things."