The former breakfast television presenter, who had her long-running Nine Network TV series axed last year, said that her new secret project will be "a lot of fun".
Kennerley told the Sydney Morning Herald of the new show: "It's a format which they felt had me written all over it; I looked at it in a broad sense and I felt it was a lot of fun."
The star revealed that it is not a chatshow, saying: "As much as I love interviews, I needed a break. I think I was bit stale mentally and I certainly wasn't enjoying what I was doing. I had a disagreement over how the show was being run and the content. That's on the record, so I'm not speaking out of school. I found that frustrating."
She added of her new career direction: "You very rarely get opportunities in life to do a 180 degree turn and try something else and, as my husband so delicately put it, what have you got to lose except a couple of kilos? And I am thoroughly enjoying it."
Kennerley is about to take part in this year's Dancing with the Stars alongside celebrities such as Erin McNaught, Brendan Fevola and Johnny Ruffo. She said that rehearsals for the reality show are "good fun" but "tough".
> 'DWTS's Kerri-Anne Kennerley: 'Dancing is as tough as algebra'
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Watch the Dancing with the Stars 2012 promo below: