Jazmine Sullivan is casually devastating on “Lost One,” her first new single in over two years, which she released Thursday at midnight.

“Lost One” is a parched ballad, mostly just a guitar lick and Sullivan’s crystalline vocals. While the musical bed is unerringly calm, the lyrics are bracing, delivered from the perspective of someone sifting through the emotional wreckage of a broken relationship. “Sometimes it’s too late to make amends,” Sullivan sings. “There is one thing I need for you to know/Just don’t have too much fun without me.”