Celebrity Chris Pratt Shared a Too Cute Video of Son Jack in Honor of World Prematurity Day By Jennifer Davis Jennifer Davis Twitter Jennifer Davis is a writer, editor, and content strategist living in Atlanta. She was previously the Associate Editor for InStyle, and is currently working as a Digital Content Manager at Cox Business. InStyle's editorial guidelines Updated on November 18, 2015 @ 11:30AM Pin Share Tweet Email Photo: Jason Merritt/Getty Images Chris Pratt is hands down one of the cutest dads in Hollywood. The actor shared the most adorable video of his 3-year-old son Jack for World Prematurity Day yesterday on Instagram, and it will melt your heart. Wearing a green bucket on his head as a hat, the video shows the tot intently coloring as Pratt and his wife Anna Faris sing "Ding Dong the Witch Is Dead" in the background. If that isn't enough to make you adore the Pratt-Faris family, the accompanying caption will. To raise awareness about World Prematurity Day, Pratt shared some statistics on his account. "Premature birth is the leading cause of death in children under 5 worldwide. About 15 million babies are born too soon every year. Nearly 1 million of these babies die within the first month of life. Support #WorldPrematurityDay and join the millions of volunteers who support #MarchofDimes," he wrote alongside the too cute video (below). Watch Chris Pratt Meet a Bunch of New Yorkers Who've Never Heard of Him Pratt's son Jack was born two months prematurely and both he and Faris have been open about the difficult time. Thankfully, little Jack is healthy and happy!