The Fontane Sisters were a popular American vocal trio in the 1950s that consisted of Geri, Marge and Bea Rosse. Known for their harmonious blend of pop and traditional vocal music, their style was heavily influenced by the Big Band era, but they also incorporated elements of early rock and roll. They found significant success with hits like "Hearts of Stone" and "Seventeen," which both reached number one on the Billboard charts. The sisters' distinctive harmonies and charming onstage presence played a key role in the post-World War II shift from Big Band to pop music.