Sarah Hyland and her husband Wells Adams dressed up as Sandy and Danny from the 1978 musical Grease.Sarah was the late Olivia Newton-John's Sandy and Wells was John Travolta's Danny.The couple was seen on Tuesday mingling with friends and passing out candy at a Halloween party in Sherman Oaks in Los Angeles, California. You're the one that I want! Sarah Hyland and her husband Wells Adams dressed up as Sandy and Danny from the 1978 musical Grease The real deal: Olivia and John seen at the end of the movie Grease The Love Island USA host and former Modern Family actress paid homage to the late Newton-John by sporting a leather biker jacket and a wig with tight, blonde ringlets, inspired by the Grease songstress.To complete the look, she wore gray jeans and black over-the-knee boots.