Yet another challenge

I know, I am really giving vague descriptions. This ones no better, sorry. During the first Scooby-Doo Movie, when Velma is reminising about Scrappy-Doo, and everyones in the Mystery Machine, what song is on the radio. It's driving me crazy and I don't want to buy the movie 'cause I only wan;t to know that one song. Thanks in advance.

okey there, but do you really like songs that much?