Melanie Martinezs music has been described as pop, alternative pop, art pop, electropop, and dark-pop. She is known for her highly stylized "Cry Baby" alter ego, and her arty pop sound borrows from folk, electronica, and hip-hop. According to her fandom page, her music genres include pop, alternative pop, electropop, dream-pop, dark pop, acoustic pop, baroque pop, indie pop, R&B, jazz fusion, rock, and folk. Her music has also been described as art pop, indie pop, R&B, electropop, hip-hop, and dark pop. Her discography includes albums such as Cry Baby and K-12, which were seen to have hip hop and R&B undertones, and Portals, which is primarily an alternative art pop and art rock album with elements of dark pop and R&B.