Greyson Chance may have wrapped up his "Waiting 4 U" tour with Cody Simpson, but that doesn't mean he's not busy. In fact, he has a lot on his plate: Getting ready for his album release, preparing for this summer's InTune concert with J-14, and his performance on So Random! READ IT: J-14 InTune 2011: Greyson Chance & Allstar Weekend
On Sunday, Greyson will be making an appearance the popular Disney show alongside the show's stars, Tiffany Thornton and Allisyn Arm. And here's the best part: He's performing his hit, "Waiting Outside the Lines"!