An opera singer and three French dancers wowed the judges to sail through to the Britain's Got Talent final.
Student Lucy Kay, who lives in Glasgow, put her confidence issues behind her and dazzled the judges with her performance of Nella Fantasia.
The 25 year-old, who was taunted by bullies for years because of her love for classical music, got a standing ovation from all four of the judges and won the public vote with her heartfelt performance.
Show supremo Simon Cowell said: “Incredible. I mean, you literally saved the show. I was on my way home and then you came back and most importantly you proved a point to yourself. You have got rid of all your problems in your past.”
Fellow judge Amanda Holden said: “Lucy, I mean, it was the most beautiful, haunting piece of music I've heard in a long time."
Britain's Got Talent past winners
Britain's Got Talent past winners
1/8 2014- Collabro
English boyband Collabro celebrate winning BGT with their musical theatre performances.
2/8 2013- Attraction
Hungarian shadow dance act Attraction won 2013's contest after a British-themed display including the voice of Winston Churchill. Cowell described their victory as "a bit of a surprise".
3/8 2012- Ashleigh and Pudsey
Ashleigh and her loveable dancing dog Pudsey met the Queen after winning 2012's Britain Got Talent. Simon Cowell loved this act so much he made Pudsey: The Movie.
4/8 2011 - Jai McDowall
Jai McDowall has faded into obscurity since winning Britain's Got Talent in 2011. He took victory from Ronan Parke but his subsequent career was short-lived after its debut solo album Believe failed to make an impact.
5/8 2010 - Spelbound
Another dance group followed Diversity in the form of Spelbound, who won in 2010. They became the first act to perform at the new Olympic Stadium and appeared twice at the closing ceremony. Many of the original members have since left.
6/8 2009 - Diversity
Diversity dance group took the Britain's Got Talent title in 2009 after a dramatic final showdown with singer Susan Boyle. Diversity have toured multiple times and performed at several high profile events since their triumph.
7/8 2008- George Sampson
George Sampson won Britain's Got Talent in 2008 after winning fans with his impressive dancing in the rain. The youngster, now 19, has since appeared on stage and in Natwest advertising campaigns. He made his cinema debut in Streetdance 3D and went on to star in Waterloo Road and Mount Pleasant.
8/8 2007 - Paul Potts
Paul Potts won over Simon Cowell with his rendition of Nessum Dorma and went on to become Britain's Got Talent's first victor. Potts has enjoyed a successful operatic career since the competition, with Harvey Weinstein even making a biopic of his life starring James Corden in the lead.
“You came back looking like a star, sounding like a star. Your voice control was incredible and I'm so happy we found you on this show. Amazing.”
Panellist David Walliams joined in the praise and said: “It was just faultless. It was like we were at your concert. You are a ready made star. If I was Simon Cowell I would be signing you up.”
While Alesha Dixon said: “Lucy I adore you and I know you have been on such a personal journey. You just transported me in that performance. I think you are a star.”
Camp dancing trio Yanis Marshall, Arnaud and Mehdi also impressed the celebrity judging panel with their diva dance medley.
Cowell said: “I said there were going to be some highs and lows. I think you were the cherry on the top of one of the nuttiest shows we have ever done on Britain's Got Talent. It was entertaining. It was fun.”
Holden said: “Honestly I think you are sexy, you are sassy. I love your styling.” While Walliams added: “Sisters, that was fierce.”
Just 45 acts have made it through to the live semi-finals from the thousands who applied and the hundreds who auditioned, and they are battling it out on the ITV1 show for the prize of £250,000 and a spot at the Royal Variety Performance.
The third semi-final is tonight at 7.30pm. The final is on June 7.