Credit: Twitter

In tonight's Glee Season 4, Episode 17: “Guilty Pleasures,” the New Directions will open up about all the things they secretly love, but are too afriad to admit. For Blaine (Darren Criss), his guilty pleasure is cheesy '80s music... and his best friend/secret crush Sam (Chord Overstreet).

But that's not all. Brittany (Heather Morris) and Kitty (Becca Tobin) open up about their guilty pleasures in a new episode of Britt's hilarous web series, "Fondue For Two." The show has released multiple spoiler videos, so now you can get a sneak peek at what's to come by watching these previews. From song performances to sneak peek scenes, take a look at what is in store.

Credit: Glee on Fox on YouTube Photo: Watch: Blaine and Sam’s “Wake Me Up Before You Go-Go” in Glee's “Guilty Pleasures”
Credit: Glee on Fox on YouTube Photo: Watch: Brittany's "Fondue For Two" Returns in Glee's "Guilty Pleasures"
Credit: YouTube Photo: Glee Promo, "Guilty Pleasures" (4-17) — Sam Has Feelings For Blaine?