Halsey broke her foot.
Poor gal. Lucky she has a good sense of humour about the entire sitch, tweeting, "Mood is me saying 'break a leg' to @FifthHarmony last night and then being in the hospital getting a foot x Ray 35 minutes later," she wrote.
Although she is now in a cast, she still took to the stage of Good Morning America with her BF, G-Eazy, for a performance of their collaboration, "Him & I", off his new The Beautiful & Damned album.
What a trooper.