Union J have revealed they'll be singing a Jackson 5 track for this weekend's Motown themed performance.
Saturday night will see the five remain acts singing two songs each for the first time, and with last weekend's shock elimination still fresh in their minds, the group are focused on avoiding the bottom two.
"It's Abba v Motown this week so we've got a classic Abba song and a real classic Motown song so it's going to show our different side," JJ revealed. "One's quite uptempo and the other is quite ballad-y, Westlife-y"
The group's Jaymi explained: "It's different for us to do something like this as we've always done very current songs on the show. So it's a bit of a challenge to try and make it current, but we don't want to change the song because they're such iconic songs.
George revealed: "We've got two songs to learn, we're so excited to be doing this. Our Motown song was a very famous song by the Jackson 5 and the Abba song is about winning.
"It's the quarter finals so we're going to go out there and give 110%."
A song about winning? We're guessing Abba's Winner Takes It All fits the bill!
Meanwhile, speaking about last week's performance and surprise results, the boys said: "Last weekend was amazing, to be in the final five, you have to fancy your chances. We never thought in a million years we though we'd be in the final five.
"Watching Ella and James having a sing off was horrible, we all though Ella would be in the final."
The X Factor 2012 continues this Saturday on ITV1 and ITV1HD, with the final five acts sing two tracks each with Abba and Motown themes.
Sunday's results show will see one more act get the axe, and there will be performances from Rhianna and Bruno Mars.