And just like that, Melanie Martinez is back. Latin-American singer, songwriter and alt-pop phenom returns with “POSSESSION,” an edgy number built on a bed of rock. “Cry Baby is dead.”It’s her first new music since 2023’s Portals, which peaked at No. Her debut album from 2015, Cry Baby, peaked at No. Later, she partnered with Flower Shop Perfume on a perfume line, the first of which arrived in 2023 — with similar success to its predecessor.