Merilou, with Star Wars and Shake It Up! fans in your family you need to head to Disney's Hollywood Studios.
Multiple times a day, by the gargantuan Sorcerer's Hat, singing dancers put on a rousing show called Disney Channel Rocks! Popular songs from Disney Channel shows, included your granddaughter's favorite, are performed with amazing energy and style. Check a Times Guide for exact show times on the day of your visit.
If your grandson has ambitions to be a Jedi, sign him up for the
Jedi Training Academy. This experience trains young padawans to battle the dark side with the force and light sabers. Arrive at the park early to register as space is limited. Another must for all Star Wars fans at Disney's Hollywood Studios is a trip on Star Tours. Even the queue at this attraction is a delight.
More questions? Please contact me or any member of the Disney Parks Moms Panel. We would love to help you create a magical vacation for your grandchildren.