It's been an unforgettable week, and tonight's semi-final lived up to expectations!
Our amazing nine acts gave it their all, but there were only two places, plus two wild card spots, up for grabs ahead of the final.
But the shock twist at the end of the night was that on top of the Judges' wild card, there would be a second wild card chosen by YOU!
This place could go to Henry Gallagher, Revelation Avenue, IMD, Boyband or Jesse-Jane McParland.
Who will it be?
You'll have to tune in to the final on ITV, Sunday, 7.30pm to find out!
Simon said it was his favourite semi-final so far, and Thursday's show was full of twists and turns, and even a few tears, curtesy of Lisa Sampson and The Neales.
But only two acts could go through to the final, and the public voted young crooner Isaac Waddington the big winner of the night, while the Judges chose family band The Neales to join them on Sunday night.
They'll be battling it out against Jamie Raven, UDI, Jules O'Dwyer and Matisse and Old Men Grooving, Côr Glanaethwy and Entity Allstars.
Check out our other amazing semi-finalists here:
The dance, acrobatics and free running act chat about their plans for the show tonight.
But will they take a tumble with our man Stavros?
Or will it be Stavros taking a tumble...
Stavros brought a little friend along - Stavroulla Flatly - when he caught up with Jeffrey Drayton and Chantal during rehearsals.
And yep, she still doesn't want to go in the cannon - and Stavros won't fit!
There were dazzling dancers, sensational singers, and even a helicopter on the third AWESOME instalment of the BGT semi-finals.
But there was only room for two more finalists from Wednesday's show.
Magic man Jamie Raven took the top spot, with the Judges sending IMD Legion and UDI to deadlock.
UDI were eventually victorious, joining Côr Glanaethwy, Entity Allstars, Jules O'Dwyer and Matisse and Old Men Grooving in Sunday's final.
Check out our other magnificent semi-finalists here:
It was a night jam-packed with incredible performances, but only two acts could go through to Sunday's final.
Jules O'Dwyer and Matisse were the big winners of the night, securing the majority of the public vote, while Old Men Grooving and Revelation Avenue were left to battle it out for second and third spot.
Simon took the Judges vote to deadlock, and the decision was back in the great British public's hands, with Old Men Grooving bagging second place, and a ticket to the final.
If you've never seen a short, round Greek guy twerking, today's your lucky day!
Find out what happened when dancing diva Luca showed Stavros how to shake his bootay.
You HAVE to see this!