Gloria Gaynor is famous for belting out one of the most iconic survival anthems of all time — and she meant every word.Only months before recording her classic “I Will Survive” in 1978, the two-time Grammy winner had to overcome a devastating accident that occurred while she was onstage performing at NYC’s Beacon Theatre. “I fall backwards over a monitor onstage. I get back up, I finish with the show, went home, went to bed.