In the segment, Elmo teaches math skills while imagining himself in different musical situations, such as "Sea Captain the Musical," "Mountain Climber the Musical," "Prince Elmo the Musical" and "President the Musical." Joining Elmo in his adventures is Velvet, a talking set of curtains, and a series of animal and Anything Muppet friends (see Elmo the Musical Characters).
The segment's theme song was composed by Adam Schlesinger and written by Molly Boylan, Annie Evans, Belinda Ward, Joey Mazzarino, Luis Santeiro, and Christine Ferraro. The song was nominated for the 2013 Daytime Emmy Awards in the "Outstanding Original Song - Children's and Animation" category, along with "I'm the Queen of Nacho Pichu" from the "Guacamole the Musical" segment.
Interactive game versions of some of the segments appear on Sesamestreet.org. Elements of the segment (including Velvet) appear in the Sesame Street Live show, Can't Stop Singing.