Grosse Pointe Theatre’s 66th season opens with the musical, “Gypsy,” at 2 p.m., Sunday, Sept. 15, with additional performances at 8 p.m. Sept. 19 through 21; 2 p.m. Sunday, Sept. 22, and 8 p.m. Sept. 26 through Sept. 28, in the Fries Auditorium of the Grosse Pointe War Memorial, 32 Lakeshore, Grosse Pointe Farms.Tickets cost $24. Group and student rates are available. For tickets and information, call (313) 881-4004, or visit the theater’s ticket office, 315 Fisher, City of Grosse Pointe, 10 a.m. to 1 p.m. Monday through Friday. Tickets can be purchased online at gpt.org and click on tickets. There is a $3 per ticket surcharge for online ticket orders. “Gypsy” is loosely based on the memoirs of Gypsy Rose Lee, a burlesque striptease artist, and her sister, Baby June, who later became actress June Havoc. The story focuses on their mother, the raucous and ambitious Mama Rose, the ultimate stage mother and her efforts to make her daughters succeed in vaudeville and burlesque shows. Marie Boyle Reinman portrays Gypsy.