Clevver News VIDEO: 13 Best Moments From Grease Live

Kicking things off on a high note (literally), Jessie J slayed the opening number as she made it perfectly clear that Grease was THE word last night. She strutted her stuff through each set, taking El Nino by storm, slaying those vocals and even picking up the original Frenchie and Doody, played by Didi Conn and Barry Pearl, along the way. Take a look: