Oh, and did we mention that Gregg Sulkin is looking ab-tastic in most of the 'Pretty Smart' trailer? (Thanks, Netflix!) Laura Marano and Gregg Sulkin sat down with ET cameras rolling to talk ...

The challenge all began thanks to one Disney fan on TikTok! Laura Marano and Gregg Sulkin sat down with ET cameras rolling to talk about their new flick, 'A Cinderella Story: Christmas Wish.' ...