Actress Annette Charles, also known as "Cha Cha" for her role in "Grease", succumbed to cancer Wednesday night at her Los Angeles home.

She was 63, and had only recently learned of her condition.

A family member told TMZ that Annette had "recently started having difficulty breathing... and when she went to the doctor she learned that she had a cancerous tumor in one of her lungs."

The actress is best known for her role as the sexy villain Cha Cha. Her co-star Jeff Conaway also passed away just this May.