Name: Jack Pack
Act: The swing band made up of Alfie, Adam, Andrew and Sean have set hearts racing performing classic Rat Pack tracks.
Saturday's winnng act Jack Pack have less than a week to prepare for the Britain's Got Talent Final.
We grabbed some precious time with the boys to find out how they're shaping up for the big day.
The semi-finals are over and we have two new acts ready to fight for the title of Britain's Got Talent winner on Saturday.
Jack Pack and Paddy & Nico were the big news of the night, but what elese where the celebrities chatting about online? Take a look.
Jack Pack and Paddy & Nico are through to the Britain's got Talent Final!
Bailey McConnell joined the swing group and the salsa dancing twosome in the top three but lost out in the Judges' decisions.