Like a lot of videos on MTV, "White Wedding's" video helped launch Billy's career and the song wasn't about his sister!"Little sister" is actually a slang term for girlfriend.

He is singing about a woman he loves that marries someone else while he still loves her.

oddly enough Billy did have a sister who was getting married, however;  on an episode of VH1 Storytellers, he explains that his sister's wedding simply gave him the idea for the song.

If know idol's background and the influence of his songs he starts with the title and writes the song from there.

Billy Idol live, performing, "White Wedding":