Britain's Got Talent: The Champions continued this weekend - here are all the performances and results from the fourth episode.
The new series welcomes back acts from the past 13 years of BGT to go head to head in a bid to be crowned ultimate champion.
But they're not alone, going up against contestants from across the world as well as each other.
Across the first five episodes, nine acts will take to the stage each Saturday night and two will make it through to the grand final.
In the fourth heat tonight (September 21), the results saw American comedian Preacher Lawson and dance duo Stavros Flatley make it through.
Stavros Flatley won the latest golden buzzer of the series from Simon Cowell while Preacher Lawson won the superfan audience vote. Both will go through to the final.
They join last week's heats winners - salsa dancer Paddy & Nico and illusionist Darcy Oake - together with previous heat winners German dog act Alexa Lauenburger, dancers MerseyGirls, Ukrainian sand performance artist Kseniya Simonova and daredevil duo Bello and Annaliese Nock.
Here's a recap of tonight's fourth round of performances below...
Dancer George Sampson won the second series of Britain's Got Talent in 2008, aged just 14. He returned to the stage for The Champions series, taking us on a dance journey through BGT and beyond.
Australian singer Bonnie Anderson may already be known for some in the UK for playing Bea Nilsson in Aussie soap Neighbours. However, her career first began when she won the first series of Australia's Got Talent in 2017 aged just 12. On BGT: The Champions, she performed a cover of You Say for the judges and audience.
Mini magician Issy Simpson first appeared on Britain's Got Talent in 2017 where she made the final and finished as runner up.. The 8-year-old returned to the show tonight where she wowed the judges with a card trick illusion.
Inspired by artist Leonardo de Vinci's mirror writing, Mirror Family are a mirror and light dance act who first appeared on Czecho Slovakia's Got Talent. Their dance act dazzled the judges and audience at Wembley Arena.
Tape Face - real name Sam Wills - is a mime act from New Zealand who previously appeared on America's Got Talent in 2016. Making his debut on the British series this evening, he got David Walliams up on stage and involved in his act.
Preacher Lawson (SUPERFAN VOTE WINNER)
Preacher Lawson is an American stand up comedian who rose to fame on America's Got Talent in 2017 and recently appeared in the American's Champions series. He wowed the audience and judges with his non-stop gags which ranged from jokes about his time on AGT to Tyra Banks.
Stavros Flatley (GOLDEN BUZZER)
Stavros Flatley are a Greek father and son comedy dance duo made up of dad Demi and son Lagi who first took Britain's Got Talent by storm in 2009 where they finished fourth in the final. Returning for The Champions tonight, the duo won the golden buzzer from Simon Cowell.
Reigning Britain's Got Talent champion Colin Thackeray won the competition just months ago earlier in 2019 aged 89. In tonight's show, he returned to the stage singing a cover of Ed Sheeran's single Supermarket Flowers.
Billy & Emily
Billy & Emily are a brother and sister rollerskating duo who first appeared on Britain's Got Talent in 2015 and have also appeared on America's Got Talent. They took to the stage this weekend with another daredevil routine that shocked the judges.
Britain's Got Talent: The Champions continues Saturday nights on ITV.
You can watch full episodes online via the ITV Hub.
Those who make it through the heats will go on to compete in the grand final at the end of the series.