Who Could It Be?

An Army photographer spotted her working in a defense plant during World War II and convinced her to model on a poster for the troops. She continued to model and eventually got bit parts in several movies until starring in Niagara and Gentlemen Prefer Blondes. One of her husbands was a baseball legend and the other was a playwright who wrote the last film she was in. Her most famous off screen performance was a breathy version of "Happy Birthday."