Pluto had Just finished music battling one of The EXOPLANETS

Before they came across you.. (you can be anything, even a OC)

you can be a planet/Exoplanet.

Pluto: "Have you came to challenge me in a music battle?!" (Also btw, they make music noises for rapping.)

Charon: Gets her boombox Ready.

Pluto: turns up His Mic.