And the judges were blown away with the rap and piano combo written by the pair while they were miles apart.
So much so that Alesha, who was left emotional by Flintz's lyrics about avoiding gang activity, pressed the Golden Buzzer.
While the lads bonded during lockdown, they only met for the first time on the day of the audition.
Flintz explained that he'd asked his mate to come to the audition to accompany him, but the producers thought they were a team.
“A week before the audition, I told Taylor to keep it on the down-low but asked if he could help me out with the keys on the piano. He came up with a melody," Flintz told the .
“We had one run-through to sound-check.
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“Then the producer asked if we both wanted a microphone, it just happened we came out and introduced ourselves and they thought we were a duo and it just worked.”
Taylor added: “I was the unnamed person in the background but everyone liked us as a duo.
“We clicked as if we had been friends for ages."
Flintz explained that he'd written the song to help encourage young kids away from a life of crime.
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“I’ve had my knuckles rapped a few times for getting up to mischief when I was younger. Thankfully I’ve never been arrested, just a few wake-up calls that taught me a lesson," he explained.
“I was a bit of a naughty kid, fights at school and that sort of thing. I’d steal pick’n’mix to sell at school so I could buy chicken and chips on my way home, I made £20-£30 a week. I don’t know who I thought I was... Alan Sugar?”
He added: “When I look on the news locally, the stuff I hear about the young kids, it worries me, especially for my youngest brother. I’m very protective.
“I’m grateful for my mum and dad pulling me out of the groups I was in, it could have gone further.”
Alesha rose to her feet after slamming the Golden Buzzer for duo Flintz and Taylor on Saturday's episode of Britain's Got Talent.
She was seen getting overcome with emotion during the performance, blinking back tears while Flintz sung and Taylor played the piano.
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Alesha told the pair: "Nothing makes me more happy than seeing young musicians. You had something to say, Flintz.
"We've had no one on the show like you before, which is brilliant. They say in life: leave the best till last."
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