The song she sang at the festival was over the top. What does the phrase "over the top" mean in the sentence?

Extra points on this question fast

What is the difference between a major and a minor character? a major character has a less important story line, while a minor character plays a bigger role in the plot. a major character plays a big role in the plot, while a minor character has a less important story line. a major character has an unimportant story line in the plot. a minor character's story line is as important and developed as the major characters' story lines.

Which summarized story is most likely a myth?