The 30th season of “Dancing with the Stars” premieres Monday, September 20th, and we now have the full celebrity cast. In alphabetical order, they are: 1. Jimmie Allen . . . country singer. 2. Melanie C . . . Sporty Spice from the Spice Girls. 3. Christine Chiu . . . “Bling Empire”. 4. Brian Austin Green . . . “Beverly Hills, 90210”. 5. Melora Hardin . . . Jan…… MORE