Jack & Jack on the Set of Alli Simpson's "Roll 'Em Up" Music Video Shoot

YH is on the set of Alli Simpson's "Roll 'Em Up" music video with two of her collaborators on the project, Jack & Jack! The fellas lament the delicious-looking fake food on set, plus they talk about their latest EP, 'Calibraska', and answer some Twitter questions from fans, including what 5 thinks they must have with them while on the road!