How to add Posy Flynn Sings to Toniebox and Yoto

Posy Flynn just found out about the Starlight Starbright Sing-Off, a competition where the winner gets a record deal and the chance to go on tour with the poppiest of all pop stars, Gemma Gold! All she has to do is escape her mean Aunt Kitty's clutches, with the help of her silly bestest friend, a monkey named Smoosh, and she'll become the pop star she always dreamed of becoming.