Leonardo DiCaprio's mom was looking at a Leonardo da Vinci painting in a museum in Italy when Leo first kicked. That's why he's named Leonardo.
As a child, Jim Carrey wore tap shoes to bed just in case his parents needed cheering up in the middle of the night.
Growing up, Katy Perry wasn't allowed to eat Lucky Charms cereal because luck was "linked to the devil." Her family also called deviled eggs "angeled eggs."
Ryan Cabrera has a tattoo of Ryan Gosling's face on his leg.