By Samantha Highfill
Updated December 30, 2015 at 12:00 PM EST
Tommy Garcia/Fox

UPDATE: It seems that the voices behind the Vine posts promoting Grease: Live don’t belong to stars Julianne Hough and Aaron Tveit after all.

“FYI none of the cast are singing these songs in these clips! All good though,” Hough tweeted Wednesday.

It’s unclear who is singing in the Vine clips, but they do offer plenty of shoo-bop sha wadda wadda yippity boom de boom.

EARLIER: For those Rydell High enthusiasts who can’t wait until Jan. 31 to see Julianne Hough and Aaron Tveit star as Sandy and Danny in Fox’s Grease: Live, the show is offering a sneak peek at some of the musical numbers.

Grease: Live has posted Vine previews for four songs — from Hough singing “Hopelessly Devoted to You,” to Hough and Tveit’s take on the classic duet, “You’re the One That I Want.” Check them all out below:

‘Hopelessly Devoted to You’

‘Summer Nights’

‘We Go Together’

‘You’re the One That I Want’

Grease: Live airs Sunday, Jan. 31, on Fox.