The chosen act left viewers and Amanda herself in tears with their emotional performance.
The mom and daughter duo Sammy and Honey went on stage to perform together, something that 14-year-old Honey once feared would not happen.
She broke down opening up to the judges over the last two years of her life being “tough” after her mother’s battle with cancer.
Sammy, 43, confirmed that luckily she was much better now, the two feeling grateful to be where they were.
The audition did not go as planned at first, as they sang an interpretation of She Used to Be Mine from the musical Waitress.
Although this highlighted Honey and Sammy’s impressive voices, Simon did not think the hearing was good enough.
He asked them to plan another song and come back later, a move that would keep them winning one of the Golden Buzzers.
Each judge gets one each, while hosts Ant and Dec share one, and the buzzer sends the acts directly to the semi-finals.
As Sammy and Honey returned later, they chose the hit Freya Ridings Lost Without You.
Mom and daughter seduced the judges and the viewers with their incredible voices and moving performances, reducing Amanda to tears.
The couple broke into tears themselves as they received a standing ovation and praise from the judges.
Simon Cowell said the pair “deserved” their moment, while David Walliams called it “flawless.”
Alesha Dixon said, “I loved the connection. There is nothing more beautiful than a mother / daughter relationship. “
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Amanda went on to praise the couple, adding with tears, “Every word you had right and sung seemed so poignant for your story. It was the most wonderful thing to see. “
It was then that without warning, she suddenly threw her hand on the buzzer and pressed it, releasing golden confetti.
As everyone clapped and cried a little more, Sammy and Honey kissed before thanking Amanda.
Britain’s Got Talent airs Saturday at 8 p.m. on ITV.