The Dalton Academy Warblers

They were a fictional a cappella glee club who, within the Glee-universe, are from the private school Dalton Academy, located in Westerville, Ohio. They were first introduced in the Glee television episode "Never Been Kissed". The episode also introduced recurring guest star Darren Criss as Blaine Anderson, lead singer and junior member of the group.[1] Performing a cover version of Katy Perry's "Teenage Dream", actors for the Warblers lip synced to background vocals provided by the Beelzebubs, an all-male a cappella group from Medford, Massachusetts. The actors who played the onscreen Warblers were not the Beelzebubs.