Annette Charles, best known for her saucy role as Cha Cha DiGregorio in Grease, died last night in los Angeles due to complictions from cancer, her rep comfirms to E! News.
Charles, who will always be remembered for outdancing all of Rydell High with John Travolta, was 63-years-old.
See Cha Cha's famous dance scene here...
We'll always remember the sexy star delivering her most famous line from the 1978 flick, when she showed up at a Rydell High dance and won the nationally televised competition with Travolta, aka, T-Bird leader Danny Zuko.
"They call me Cha Cha. Because I'm the best dancer at St. Bernadette's," she says.
In 2002, Charles, the ultimate hand-jiver and creator of the danceoff, revisited her character in a VH-1 Where Are They Now? special.
Her family is expected to make a comment soon.