Whether it’s a doot doot doot of an opening riff or a random mix of words from the chorus, 99 per cent of people admit to getting songs stuck in their heads. So what is it about certain songs that make them so catchy? How does a song get stuck in your head?

Introducing: CBC Podcasts in Class

Fifteen-year-old Tai Poole won’t rest until he’s uncovered the mysteries of the universe, one probing question at a time. In Season 4 of his Webby-winning podcast, Tai talks to everyone from NASA scientists to stand-up comedians to his equally curious little brother Kien. If you’ve ever wondered why nothing feels as good as a deep belly laugh or why it’s impossible not to finish a bag of Doritos, Tai has you covered.