Next week, ‘Glee‘ is turning back the clock — way back to the days of disco. A preview clip of the ‘Saturday Night Glee-ver’ episode shows the cast performing disco classics, even though Mr. Schuester seems to be the only one who’s truly excited about the idea.

Mr. Schuester announces, “We are going back in time!,” but the kids all shout, “Disco sucks!” Still, we see the kids perform ‘Stayin’ Alive’ and ‘Disco Inferno’ surrounded by flashing lights and disco balls, which means they ultimately embrace the disco idea, whether they like it or not.

The episode is based around ‘Saturday Night Fever’ and is expected to feature eight songs from that legendary soundtrack, according to Amazon. The ‘Glee’ Cast will take on five Bee Gees hits, including ‘More Than a Woman,’ ‘Night Fever’ and ‘How Deep Is Your Love,’ as well as KC & the Sunshine Band’s ‘Boogie Shoes’ and Yvonne Elliman’s ‘If I Can’t Have You.’

There’s one potentially scandalous moment in the teaser, when Brittany tells a shocked Santana, “Everyone’s loving the sex tape of us.” Things are about to get really interesting! ‘Saturday Night Glee-ver’ airs on FOX on April 17.

Watch the ‘Glee’ ‘Saturday Night Glee-ver’ Teaser