The Let It Shine bands face a brand new challenge on the live shows this week as they're tasked with a dance breakdown.
Last weekend saw the first of three live finals as Gary Barlow's talent show nears its climax.
The bands performed live for the first time and five boys went home leaving us with four bands in the semi-final: Five To Five, Drive, Nightfall and Iron Sun.
In the semi-final double bill the four remaining Let It Shine bands will go head to head in a bid to impress the judges and audience at home once again with another four guys heading home at the end of the weekend.
Each band will again perform a brand new song but this week they will each need to include a dance break to keep their place in the competition.
They'll also be teaming up with Gary themselves in an epic opening number.
The opening performance will see the remaining bands each perform a classic Take That hit, before they are joined on stage for a very special collaboration with Take That themselves, Gary Barlow, Mark Owen and Howard Donald to perform the song Shine.
Meanwhile, former Pussycat Doll Ashley Roberts will join Let It Shine as a guest judge for the semi-final alongside Gary, Martin Kemp and Dannii Minogue.
She said: “I’m beyond excited to be joining Let It Shine and taking a judging seat beside the brilliant Gary, beautiful Dannii and handsome Martin.
I’m looking forward to sharing my experiences of being in a band and I can’t wait to see what surprises the boys have in store for their live semi- final performances!”
In the results show the two bands with the lowest public votes will each perform a classic Beatles song in the dramatic sing off before five boys are sent home.
Let It Shine continues next Saturday night on BBC One at 6:55PM with the results 20:45PM again.