Grease’ celebrates 45th anniversary: Behind-the-scenes secrets of iconic musical

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Tell me more, tell me more: It has been 45 years since "Grease" was released in theaters, making John Travolta and Olivia Newton-John household names.

The movie, which was released on June 13, 1978, followed Sandy Olsson (Newton-John) and Danny Zuko (Travolta) as they struggled to make their relationship work due to the fact that they come from two completely different worlds. Danny is a greaser and Sandy is a good-girl cheerleader.

Their love story quickly captured the hearts of America, becoming such a hit it inspired the sequel, "Grease 2," starring Michelle Pfeiffer as the female lead, Stephanie, in her breakthrough role.