Joseph Gordon-Levitt, Seth Rogen, & Anthony Mackie help us get into the holiday spirit at the YH Studio when they stop by to discuss their Christmas comedy 'The Night Before' and open some sweet gifts from our own resident Hanukkah Elf! They also talk about working with director Jonathan Levine and co-star Michael Shannon, plus they share some of their real-life karaoke triumphs and favorite quotes!