Jake Quickenden, Chloe-Jasmine Whichello, Stereo Kicks & co will be taking on hits from the decade that brought us such legends as Wham!, Madonna and Whitney Houston.
Here's what they'll all be singing:
Mel B's boys:
Jake will be singing Total Eclipse of the Heart by Bonnie Tyler, Jack Walton is taking on Simply Red's If You Don't Know Me By Now, Paul Akister will try out Paula Abdul's Straight Up and Andrea Faustini will, no doubt, amaze with One Moment In Time by Whitney.
Cheryl's girls:
Chloe-Jasmine is singing Fame by Irene Cara and we've got a feeling it's going to be amazing! Stephanie Nala will take on Call Me by Blondie, it's Imagine by John Lennon for Lola Saunders and Lauren Platt has got What a Feeling, also by Irene Cara.
Louis' groups:
He lost half of his category last weekend, so let's hope his acts do better this week. Mega boy band Stereo Kicks are taking on Boys Of Summer by Don Henley and it's Come on Eileen by Dexy's Midnight Runners for Only The Young.
Simon's Over 25s:
It's probably not a surprise that Stevi Ritchie is singing Rick Astley's Never Gonna Give You Up, Ben Haenow will sing Jealous Guy by John Lennon, Fleur East is taking on It's a Shame by Monie Love and Jay James Picton has got the Proclaimer's I'm Gonna Be (500 Miles).
Which act are you most looking forward to seeing?