The Rainbow Milk Challenge - drink a gallon of milk in under an hour. It's impossible to keep down because your body can't hold all of the milk. Add food coloring to it to make your vomit colorful! Enjoy!!  

Izzy completed it in 53 minutes while Kathleen drank about half and gave up. Props to Izzy.

Film credit: Ally

Song: Unpredictable by 5 Seconds of Summer