Find out the line-up for the fourth Semi-Final here...
What a week! Richard Jones and Boogie Storm have just become the fifth and sixth acts through to the Grand Final on Saturday (May 28) but there are still four places up for grabs!
Here's who'll be hoping to bag themselves one of those slots tomorrow...
Britain's Got Talent returns with all these acts and more tomorrow (Wednesday, May 25) at 7.30pm on ITV!