It's not yet clear if more celebrities will join at a later stage in the competition.
This year, the group gearing up for bushtucker trials includes Dougie Poynter (left), member of boyband McFly, Hart to Hart actress Stephanie Powers (centre) and Mark Wright, famous for his appearance in the reality show The Only Way Is Essex (right).
CLICK ON PHOTO FOR FULL GALLERY OF CONTESTANTS
Other celebrities include Real Hustle actress Jessica-Jane Clement, athlete Fatima Whitbread and Emmerdale's Lorraine Chase.
The group have already landed in Australia and it's fair to say that this year's stars are definitely an eclectic mix and sparks could fly.