Madonna, 56, fell down three stairs while wearing a large black-and-red cape. She dropped her mic, but picked it up after the fall and continued her song, "Living for Love."
From the pictures and the video, it looked like her cape was tugged on from behind.
The singer seemed to miss a few lines, but picked herself up like the icon she is.
Afterwards, Madonna wrote, "Armani hooked me up! My beautiful cape was tied too tight! But nothing can stop me and love really lifted me up! Thanks for your good wishes! I'm fine! ??#livingforlove."
A rep for the singer said she was "waiting to hear" back about Madonna's condition after the incident. Tonight’s performance was the first time in 20 years that Madonna took the stage at the Brits.