Movies Chris Pratt Adorably Makes Up His Own Version of the 'Jurassic Park' Theme Song By Meredith B. Kile 6:20 PM PDT, April 8, 2015 Universal Pictures Chris Pratt isn’t just starring in the fourth Jurassic Park installment Jurassic World, he's also rewriting the theme song! WATCH: 14 Awesome Moments in the 'Jurassic World' Super Bowl Trailer We Need to Discuss ASAP The Guardians of the Galaxy star made up some words to the legendary John Williams theme on an Instagram video for MTV on Wednesday, and we're totally on board for his version. View this post on InstagramA post shared by MTV (@mtv) "It’s Jurassic Park, it's Jurassic Park, and the dinosaurs will flip out," the actor sang before giving his best dinosaur scream.NEWS: Official 'Jurassic World' Lego Playsets Are Coming!Check out the latest trailer for Jurassic World in the video below!'Jurassic World' Super Bowl Trailer This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page.