The band consisted of Cosmo on the electric triangle, Pan on the pan flute, Santa Claus on the drums, and Beethoven on the organ. They were immediately booed and pelted with tomatoes by a riled crowd of angry Chip Skylark fans that were awaiting his appearance.
The crowd at the Dimmadome for Chip Skylark's concert was beginning to get restless, to Timmy Turner sent Cosmo to distract the crowd while he figured out a way to free Chip from Vicky. Cosmo arrived and introduced himself on the microphone, quickly getting pelted with a tomato when he revealed Chip had not arrived yet, and poofed up other band members who also got pelted with tomatoes. By the time Timmy arrived with Chip, Beethoven was busy fighting back the crowd with a guitar. They have no made any more appearances since.
- Cosmo appearing in Fairy form in plain sight of an entire crowd of humans is an obvious gross violation of Da Rules. Given the fact that the Band has Pan and Santa in it, the crowd may just think it's a costume similar to Cosmo and Wanda's appearance at Dimmsdale Convention Center for the comic book convention.