Britney's sister is busy planning her wedding

Washington (ANI): Superstar Britney Spears' younger sister Jamie Lynn Spears is all set to walk down the aisle with boyfriend Casey Aldridge by the end of this year. Jamie, 17, who just gave birth to her first child Maddie with Casey, 19, is busy planning the wedding with her to-be-husband in his hometown of Liberty, Mississippi, where the couple has been living.

Jamie got engaged to beau Casie in March this year and wants a low-key southern style wedding, but big sis Britney Spears is expected to step in as the maid of honour. "She loves everything about the area where she lives, she's not going to get married at some luxury resort in the Caribbean or a hotel in Beverly Hills," Contactmusic quoted a source, as telling OK! Magazine.

Lynn has been working out rigorously to shed all the baby fat in order to fit in the wedding dress of her dreams. "She's already down to her pre-pregnancy weight," an insider said.