From Puff the Magic Dragon to Snoopy's Christmas to Baby Shark, writing songs for children has always been a lucrative business.
It's also one of the trickiest. Children are one of the hardest audiences to please.
So how do you write a hit song for kids?
Seven Sharp's Rhys Mathewson attempted to create his own catchy kidsbop number.
Watch the video above to see if he was successful.
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