American Greetings will introduce Cherry Jam in the autumn.
Cherry Jam is the first new character to join the team in over five years.
The singing star has lots of fans, but dreams of a home where she will be appreciated for who she is offstage. When she goes to Berry Bitty City, Strawberry Shortcake and her friends will prove that Cherry Jam has much more to offer than her superstar status.
Gabrielle Oliff, marketing director, American Greetings Properties, said: "We are very excited to welcome Cherry Jam into the Strawberry Shortcake family. We know little girls everywhere are going to love her and will be inspired to be themselves and follow their berry own beat.
"She lives a very exciting life as a pop superstar, yet turns out to be a fantastic friend and wonderful addition to Berry Bitty City."
Cherry Jam's first appearance will be in the autumn when the TV series - Berry Bitty Adventures - returns to The Hub for its second season. The CGI animated series made its debut last fall and became a top ranking series for girls aged two to five.
The introduction of Cherry Jam will be supported by a toy line from Hasbro, available in spring 2012.