Artist: Barry Bostwick, Carole Demas & Michael Leonard Orch.
Author: Jim Jacobs/Warren Casey
In Broadway cast musical Grease; Barry Bostwick as Danny Zuko, Carole Dumas as Sandy Dumbrowski; that's John Travolta and Olivia Newton-John in the film version. See also: Greased Lightnin'.
All other Grease hits (Sandy, Hopelessly Devoted To You, You're The One That I Want and Grease) were not part of the original play, but were specially written for the film.