It's not news that celebrities have a huge influence when it comes to setting trends.
Veronica Lake's signature hairdo was copied by most women in the 40's. But the long wavy hair was causing many accidents at war factories; usually the locks of hair were caught in the machines. That's why Veronika was asked to wear her hair up during the rest of the war.
She even appeared in and ad at "Life" magazine to prevent more accidents.
Song: Heartbreak Hotel-Elvis Presley.