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!
Our semi-finalists have smashed it this week, and the line-up for tonight's show is an absolute corker!
Nine amazing acts will be battling it out to join Jamie Raven, UDU, Côr Glanaethwy, Entity Allstars, Jules O'Dwyer and Matisse and Old Men Grooving in Sunday's live final.
But only two acts will go through from tonight's show, so don't forget to have your say and vote for your favourite.
Stephen chats to magic man Jamie Raven and UDI about their plans for the BGT final on Sunday.
In fluent Siberian. Or, erm, something like that...
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: