John Travolta and Olivia Newton-John recreated their iconic "Grease" characters, Danny and Sandy, on Friday night in West Palm Beach, Florida. The pair came to town for a sing-along of the movie and a Q&A session at the Coral Sky Amphitheatre. It's the first time the two have been in costume since they first made the movie more than 40 years ago, Newton-John wrote on Instagram. Both actors posted a photo of their arrival at the event on Friday — looking like they just stepped off the movie set. Appearing in her "good girl" outfit, Newton-John is sporting her yellow skirt and matching cardigan, complete with the white button up. Travolta, meanwhile, is wearing a classic leather jacket, with his hair slicked back in a way that would make any greaser proud.But fans of Sandy's bad girl transformation at the end of the film have nothing to worry about. Newton-John made time for a quick outfit change, donning a leather jacket and black pants in time for the Q&A. The throwback comes just days after a fan, after purchasing Newton-John's black leather jacket from the movie for $243,200 at a charity auction, presented the jaRead More – Source