I recognize this melody, I just don't remember where from. Super familiar-sounding.
Except the lyrics aren't nonsensical. It's about him being bullied in school and it's kind of an anthem to the outcasts and children that feel alone - for them to be proud of themselves and for what they are; "to stand up and be heroes".
Sounds kind of like Mr. Big - To Be With You
Nanny Fine is that you?