Incredible act gets America's Got Talent standing ovation with heart-breaking tribute to dead nephew

An incredible Irish singer has received a coveted America's Got Talent standing ovation with a heart-breaking tribute to her late nephew .

Stephanie Rainey met judges Simon Cowell , Howie Mandel, Heidi Klum, and Sofia Vergara on Tuesday to sing Please Don't Go, a viral track she released in 2015 dedicated to her nephew, Fionn, who died a day before his first birthday.

Fionn tragically passed away following a battle with meningitis. The song has garnered close nearly 10 million streams on Spotify and has now made it across the Atlantic , with Cowell dubbing it "the best song of the year".

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The 36-year-old from Co Cork told the judges: "I've had a very rollercoaster career . This song I'm going to play has had quite a big moment in the past... the journey from then to now has been hard.

"[The music industry ] is tough. You have to be resilient and when the downs come you have to be able to pick yourself back up, so here I am. It took me a long time to write a song [about Fionn]. I was about to give up music .

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"I wanted to make something for me that I believed in. This song means more to me than I can describe."

Stephanie then launched into a powerful rendition of the song which prompted heaps of praise from the celebrities . Howie Mendal described it as "the most relatable, emotional moment we've had on season 19."

Meanwhile, Cowell, told Stephanie: "Of all the new songs I've heard this year, this is the best by a mile. Even though it's about something really sad, it's real, and your voice is beautiful. A lot of people will resonate with that song."

The recent resurgence of Please Don't Go catapulted Stephanie to number one in Canada's Singer-Songwriter Chart, and number one in the US . Hundreds have said the song helped guide them through their grief and healing process.

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Needless to say, the Celtic songstress got four yes's and is through to the next round of the competition. Stephanie's will perform in Dublin and Co Cork this winter. Tickets go on sale on Friday, June 28.

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