Dust off your dictionaries and grab that hairbrush microphone. "Schoolhouse Rock. 50th Anniversary Singalong", the fifth installment of its successful "Singalong" franchise, with Emmy®-winning television host Ryan Seacrest. "Schoolhouse Rock. 50th Anniversary Singalong" will air on ABC and stream next day on Hulu and at a later date on Disney+. ABC is taking viewers to school, inviting friends and family around the county to gather and enjoy classic "Schoolhouse Rock!" hits that are as educational as they are catchy, all in celebration of the 50th anniversary of the beloved series.