This episode features the LXD series debut of Glee dance ringer Harry Shum Jr. Shum plays Elliot Hoo, who pulls out a hollow wall to discover a pair of sneakers which pull him out of bed and compel him to dance.
Elliot is at first just a witness to his shoe-directed moves but gives in and becomes one with the movement, participating willingly then gaining control of the movements.
In true superhero fashion, Elliot wears glasses in the beginning and takes them off as he gains control and confidence in his new-found role as a super-dancer, ala Clark Kent (who removes his glasses when changing into his Superman persona).
This is a pure dance showcase episode, and a one of the best of the season. Shum is a tremendously engaging and skilled dancer, and it’s good to have him on-board the LXD, both for the ratings he’ll draw from Glee fans and his talented pop-and-lock style.