Backstage at KDWB Star Party 2016, Steve-O took the opportunity to ask Charlie Puth questions from his kids - 6-year-old Olivia and 4-year-old Isaac. Naturally the line of questioning turned into superheroes, ballet, who would win in a fight, Charlie's favorite food and of course there's a hilarious knock-knock joke!

The two also talk about Charlie doing pilates with his mom, his perfect pitch, visiting the Eiffel Tower and more! 

 

PHOTOS: Charlie Puth at KDWB Star Party 2016