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!
Old Men Grooving took some time out of rehearsals to put Stavros through his paces ahead of tonight's semi-final.
Talk about teaching an old dog new tricks!
And don't forget, Old Men Grooving will be appearing in tonight's show on ITV, 7.30pm.
Stavros caught up with magician Michael to share a magic moment during rehearsals.
Find out if he knows his abracadabra from his Abba!
And don't forget - catch Michael in action in tonight's live semi-final show on ITV, 7.30pm.
Welsh choir Côr Glanaethwy were victorious on Monday night, earning a coveted spot in Sunday's final following their beautiful rendition of The Prayer.
"I've fallen in love with you... it was heart-wrenching," said Alesha.
Joining them in the final is Entity Allstars, who went head-to-head with singer-songwriter Henry Gallagher. The talented 12-year-old was gracious in defeat - and we reckon he'll still get the girl!