CHICAGO: Quaker Oats launched a PR-driven sweepstakes campaign featuring teen actress and singer Miranda Cosgrove. Quaker Chewy Afterschool Rocks will promote a new partnership with Afterschool Alliance, a nonprofit that made Quaker Chewy Granola Bars its official snack.

“We're really excited about this partnership with Afterschool Alliance because we know Chewy is a brand that moms really look to as a great option for their kids after school,” said Bill Fiely, senior brand manager of Quaker Chewy. “We ...