London Music Works Perform Music From The Muppets is a 2015 album featuring covers of Muppet songs produced by London Music Works and featuring full orchestras, big bands, marching bands, singers, Muppet impersonators, and other musical ensembles. The album was released on February 17, 2015. London Music Works previously released covers of "The Muppet Show Theme" and "Mah Na Mah Na" as a single track on their 2013 compilation "100 Greatest TV Themes Vol. 3".