Classico, Dissco and Punkcor

Classico: A very popular Pokémon among the rich back in the early 20th century. They love open rooms when they can dance across the floor. Their music put humans to sleep, and the pearls around their bodies help amplify their strength.

Dissco: In the late 20th century, they surpassed Classico's popularity rank. There was a great "evolution boom" where everyone wanted to evolve their Classico so they could dance with it. Disscos are easily caught up in the beat of anything and lose focus in battle just to dance. But overtime it develops their ability to use "Strange Dance". Their heavy necklace coin amplify their power.

Punkcor: Only obtainable by Trade. Large wire like structures emerge from their ears to amplify their hearing. Their body piercings cannot be removed from their bodies and amplify their powers much better. They are a lot more brutal than their pre-evolved forms and now tend to challenge their own kinds in dancing contests.