Yes, there are more. Charming Munna, Pokemon Smash!, Carnival Pokemon and Carnival Ludicolo! are the additional ones.
There are four categories of Musical shows. Also, each show has its own target audience. The player starts with four Musical shows: Stardom, Forest Stroll, A Sweet Soirée, and Exciting Nimbasa. Additional Musical shows can be obtained by participating in the Pokémon Global Link promotions. Much like C-Gear and Pokédex skins, only one additional Musical show can be stored in a Black or White game.