Speaking in a Honeymoon Diaries video, she explained: "I almost died. I can't stop thinking about this, because it was literally the craziest. So the wooden thing breaks and goes like this! (sic)"
The brunette beauty - who is dating rapper Big Sean - then gestured how the panel had snapped from a horizontal to a vertical position and how she managed to cling onto a beam until she was saved by crew members.
She continued: "I'm about to be crushed by mechanical, by metal s*** and by wood and stuff, and I go like this and grab this thing."
However, the near-death experience, which happened during a performance of her single Love Me Harder, didn't faze her in the slightest and she managed to continue singing the hit.
She added: "I didn't drop the mic. I was like, 'Oh I gotta keep singing'."
- Bang! Showbiz