That of course is a lyric from the musical Grease.
Sandra Dee represented the wholesome girl next door, and the song in Grease satirizes that image. But it does denote that the teenage star of the 1950s and early 60s was a household name. In fact Sandra Dee was one of the top ten box office stars four years in a row from 1960 though 1963.
She had started as a child model. But by 1957 Dee, born Alexandra Zuck, in Bayonne, N. J., in 1942, had made it to Hollywood. Universal soon glamorized her.
She gave quite a good performance in Until they Sail, an underrated film with Paul Newman, Joan Fontaine and Piper Laurie, about New Zealand during World War II.
After that Universal put her into Gidget and Tammy movies. But she did some fine work in A Summer Place, and the Rock Hudson, Gina Lollobridgida comedy, Come September. It was during that film she met co-star Bobby Darin. She and the New York born crooner soon married and had a son.
Universal tried making them a romantic comedy team and paired them in two films, If a Man Answers, and That Funny Feeling. But the films were only moderate successes.
Although the couple divorced after being together for seven years, neither ever remarried. Darin died in 1973. Dee semi retired after that and died of kidney disease at 62 in 2005.
Dodd Darin wrote a very good, and revealing, biography of his parents, Dream Lovers: The Magnificent Shattered Lives of Bobby Darin and Sandra Dee. We highly recommend it.