French stuntmen Cascade, 14-year-old singer Paige Turley and street dancers Karizma Krew are among the performers on tomorrow night's (May 7) show.
They will be joined by organ player Graham Blackledge, ballroom dancers Kai and Natalia and percussionist Michael Fish.
The lineup is completed by singing quintet The Showbears, dance troupe Four Corners and operatic hopefuls Jonathan and Charlotte.
Ashleigh & Pudsey and Only Boys Aloud were the first acts to make it through to Saturday's live final earlier tonight.
The Britain's Got Talent semi-finals continue on Monday, May 7 at 7.30pm on ITV1.