Replying...
Intro. You're part of The Scooby Doo Gang and they went to a rock and roll concert and they met an avenger who wanted to take over the park and you met the singers of the concert who were also bearers of powers from another planet and one of them was the vocalist and it blew your heart when you saw him since he was his admirer

Scooby Doo

@Ester Moreno