But for one young contestant, fighting for survival is nothing new.
Daily Mirror Pride of Britain winner Ravi Adelekan does it every single day.
The nine-year-old was diagnosed with a potentially fatal brain tumour two years ago, had to relearn how to talk and walk, and still lives with part of the inoperable tumour.
Tonight he and his Dream Team choir-made up of family, other youngsters with brain tumours and little sister Maya - will be turning that pain into positivity, as they hope to win our hearts and votes on the BGT stage.
"The strength I learnt from my brain tumour will help me with the strength to do super well in BGT," says Ravi.
"I'm a little nervous but I know my supporters will help me.
"The best feeling in the world, when I'm in front of the judges, is to have my sister and parents behind me."
Since his diagnosis, he and his choir have raised over £100,000 for brain tumour research, earning him a Pride of Britain Award with TSB last October and a chance to meet Prime SIST gets who was Alesha Minister Rishi Sunak.
And Ravi Dixon's Golden Buzzer pick - has also got some Lions roaring for him. Oh, and another pop star.
Mum Bethan, 42, says: "We've had good luck messages from Paloma Faith, Jack Grealish, Jermaine Jenas, and more. It's been amazing.
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Denne historien er fra May 28, 2024-utgaven av Daily Mirror UK.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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