Olivia Newton-John and John Travolta dress up as their iconic 'Grease' characters 41 years later

We got chills from seeing Olivia Newton-John and John Travolta dress up as their characters from "Grease" for the first time in over 40 years. The actors, who played lovebirds, Sandy and Danny, in the iconic 1978 musical romantic comedy, reunited for Meet n’ Grease sing-along event on Friday at the …