Billboard reached out to a rep for Lizzo for more information.
Reactions to her post ranged from "OMFG" to "HARRY HARRY HARRY" (manifesting their dream of a Lizzo/Harry Styles collab) to "YOU AND CHRIS ARE FINALLY MAKING IT OFFICIAL????" (in reference to the singer's budding Internet friendship with Chris Evans).
Many fans wondered whether Monday would bring a new single or album announcement. Lizzo released her breakthrough album, Cuz I Love You -- which peaked on No. 4 on the Billboard 200 and delivered chart-topping singles like "Good as Hell" and "Truth Hurts" -- more than two years ago.
Lizzo also recently hinted in an Instagram video that there's "a lot of exciting s--- coming." "Hold on to your horses," she warned.
See Lizzo's teaser below, and start guessing what tomorrow might bring.