Astrid Jorgensen used her love of communal singing to build Pub Choir - a concept she took all the way to America's Got Talent.
The idea involves turning a theatre of regular people into a choir and with Jorgensen's tuition and a PowerPoint, any group can sing a three-part harmony.
She used her experience to craft a memoir - Average At Best.
"Can everyone learn to sing and win a Grammy Award? Absolutely not. But can everyone physically sing? Yes! If you can talk, it's the exact same mechanisms that help you to sing."
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