Although Harvey Gardner, 16 at the time, had only performed at school assemblies, he blew Britain’s Got Talent judges away with his original song “Not Alone”, written for his grandmother with Alzheimer’s Disease. “My nan,” Harvey tells the judges, “was diagnosed with Alzheimer’s three years ago. This song is a tribute to her.”

When Harvey sits at the piano and sings his song, he beautifully captures the love a child has for their grandmother and the grief that comes when Alzheimer’s starts taking them away. Sadly, Harvey’s grandmother passed just a few days before his audition aired. The teen told the media, “We had such a great relationship and that’s something great to remember.”

Back in 2016, Cristina Ramos went completely viral after auditioning for the Spanish version of America’s Got Talent. At the beginning of the audition, the 37-year-old sang classical opera before AC/DC’s “Highway to Hell” started playing over the loudspeaker.

Cristina and the judges looked confused, but confusion quickly turned to awe when Christina whipped off her gown to reveal an edgy, black corset and black ripped jeans. The 37-year-old’s voice is impeccable and it’s so amazing to see an opera singer partake in the rock genre.

Judge Edurne Garcia Almagro’s jaw hangs throughout the entire performance. When the crowd starts chanting “Golden Buzzer”, the stunned judge had no choice but to comply.

When Craig Colton appeared on stage telling judges his parents were in the audience but had no idea he would be singing, it was clear his audition would be more interesting than most.

The witty, 22-year-old chats with the judges before unleashing a giant voice in a breathtaking rendition of “Hiding My Heart Away”. Adele is known for her vocal skills and Craig’s selection is not the easiest song. Still, the pleasant 22-year-old blows everyone away and ultimately progressed up to week 7 of the series before being eliminated.

For those in the UK, Sam Bailey may be a familiar name— but that hasn’t always been the case. Back in 2013, the female prison guard achieved international fame when a video of her auditioning for The X-Factor UK went completely viral.

In the video, the 36-year-old gives a stunning audition, performing Beyonce’s song “Listen”. The judges were floored by the prison officer’s performance and Bailey ultimately went on to win her season’s cycle. In an interesting twist, after winning the season, Bailey got the opportunity to support Beyonce in a few UK shows during the superstar’s 2014 tour.

Jonathan Antoine and Charlotte Jaconelli were only teens when they graced the Britain’s Got Talent stage. The duo was paired up by their singer teacher and had been singing together ever since. With their combination of opera meets pop, the teens blew the crowd away right from their very first note.

The duo’s audition has been viewed over 100 million times, but sadly, they did not manage to win the competition, coming in second place. Still, their dreams were not for naught. Charlotte and Jason were offered a £1million record deal by Simon Cowell and have since separated to create solo albums for Sony Classical.