Where do i send fan mail to Sonny With A Chance?

Hi, I want to send Fan Mail to the whole Sonny With A Chance cast, (Demi-Sonny, Sterling-Chad, Tiffany-Tawni, Brandon-Nico, Doug-Grady, and Allison-Zora) Do I send fan mail individual, or put it in one packet and ship it to Sonny with A Chance, and what's the address. I want to send something to every character.