Annette Joanne Funicello was an American actress and singer. Funicello began her professional career as a child performer at the age of twelve. She rose to prominence as one of the most popular "Mouseketeers" on the original Mickey Mouse Club. As a teenager, she transitioned to a successful career as a singer with the pop singles "O Dio Mio," "Tall Paul" and "Pineapple Princess", as well as establishing herself as a film actress, popularizing the successful "Beach Party" genre alongside co-star Frankie Avalon during the mid-1960s. In 1992, Funicello announced that she had been diagnosed with multiple sclerosis. She died of complications from the disease on April 8, 2013.