Vintage Gemmy Frogz: Rock It/Rap It/ Ribbit! Britney Spears Baby One More Time. NEEDS REPLACEMENT BATTERIES. This product is a vintage battery-operated toy from Gemmy featuring the Frogz character family. The toy has three modes: Rock It, Rap It, and Ribbit! It also has a unique feature where it plays Britney Spears' hit song "Baby One More Time."