The hit Broadway musical Mamma Mia! is headed into a month of celebrations culminating in its 10th anniversary at the Winter Garden Theatre. On September 14, the show marked a different milestone, becoming the 10th longest running show in Broadway history. During the curtain call, star Lisa Brescia chose 10 lucky audience members to receive a box of cupcakes created especially for Mamma Mia! by Magnolia Bakery. The treats, available in chocolate or vanilla with blue sparkling icing, will be available at the bakery’s Rockefeller Center location from September 15 to October 15. Click through below to see Broadway.com’s photos of a delicious celebration!