Teacher who holds record for loudest shout ever recorded had Slipknot's Corey Taylor blown away with scream
A teacher recorded a shout which has kept the record as the loudest voice recorded for over two decades.
Annalisa Flanagan took part in a competition alongside her sister back in 1994.
Not one person has since managed to equal Annalisa's literally thunderous bellow from the competition.
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Her shout was so impressive that she managed to impress someone who would be quite used to loud noises, and screaming in particular.
That was lead singer of Slipknot Corey Taylor, who found out about Annalisa during an appearance on British quiz show QI.
For those who aren't familiar, the show's title stands for 'Quite Interesting'.
Panellists earn points by coming up with interesting answers, and lose them if they answer with a common misconception.
One of the quite interesting points which came up on the show was who was the loudest person ever recorded.
You might think it would be an opera singer, but even the world's loudest opera singer Smilyana Zaharieva came up short of Annalisa, with Zaharieva coming in at 113 decibels.
But Annalisa came up even louder with that, leaving Corey Taylor of Slipknot stunned.
That's because she clocked in at a whopping 121.7 decibels, as loud as a chainsaw, and louder than Slipknot's concerts according to Taylor.
Reacting to hearing how loud she was, the singer said: "That's quite loud. Our shows top out at 109 [decibels], and those are quite loud, so 121 is stupid."
Annalisa recalled how she had been attending a church summer camp in 1992 when they were holding a record breaking day.
She told the BBC: "Now, normally I'm quite a competitive person. They had this shouting competition, but to be honest, I thought it was a bit embarrassing so I stayed out of it.
"But, then one of the kids told me my twin sister was winning. So I thought, if she is good then I'll be good too."
Annalisa said she thinks it was the competition between them which drove her to keep shouting louder.
She recalled: "My sister got 119.1 and I got 119.4 - so she held the record for a little while, and then it was me."
Then in another try, she achieved her shout of 121.7 decibels.
Annalisa later visited a clinic where singers would get their vocals checked.
She said: "In the end, the expert's conclusion was that I was so competitive when I set the record, so determined to beat my sister, that it spurred me on."
Despite her loud shouting voice, the teacher says that she is 'not a shouter' in the classroom.
Kit Roberts