However, the judges assured her that wasn't necessary.
She and Tyce offered to do the stunt again but the judges were having none of it - adamant that Mary and Tyce had done more than enough to qualify for the live shows.
The daring duo took it it to the next level when Tyce, who is blind in one eye due a progressive eye disease, donned a blindfold in what was supposed to be the grande finale of the act.
For the act's final trick, Tyce blindfolded himself as he hung upside down.
But as she slid Tyce lost his grip, causing Mary to slip through his fingers like a silk ribbon, hitting the ground with an almighty thud.
Also watching in the audience were Mary's mother and 2-year-old son, Jaxx, who were witnesses as the horrifying incident unfolded, according to People Magazine.More news: Jabari Parker agrees to 2-year, $40 million deal with Bulls
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Fortunately, a heavy mat laid on the stage at the end of Mary's long fall. After several agonizing seconds, Mary revealed to the crowd she was not seriously injured. Amazement turned to horror when Tyce dropped his wife and she ended up crashing onto the stage below.
The couple, clearly embarrassed by the mishap, asked the judges for a chance to do their act again.
Simon Cowell was sympathetic, noting, "I don't think there's ever been a singer on any of our competitions who's been note-perfect. It doesn't make them not fantastic, it makes them human". The consequences on this are slightly worse than falling off-key, whereas you almost broke your neck.
"Everything about it, the music, the suspense, the fire, just incredible!" yelled Mel B. "I don't think you should try that".
"You nearly got hurt very badly and your first thought was 'Let me do that again!' only on America's Got Talent does that happen", Judge Howie Mandel stated to the couple after their performance.