|Written by||Buck Clayton|
"What's Your Number?" is a jazz instrumental song originally recorded by Count Basie and his Orchestra in 1940.
Elmo dances to the song in a Sesame Street Season 28 insert, directed and choreographed by Rachel Harms. (First: Episode 3526) This segment was featured as the tag end of the video Get Up and Dance in its original release, replaced in later versions with "Elmo's Rap Alphabet."