Australian Idol contestant and country music star Kate Cook has been found dead.

The 36-year-old was last seen wandering off into the bush near her home in Lowood, Queensland on Sunday night.

Her body was found 500 metres into the bushland this morning after a police search.

Police are not treating the death as suspicious.

Cook, who grew up playing guitar by the campfire, gave up her day job cutting meat in an abattoir to pursue a music career when she was 26.

She reached the semi finals of Australian Idol 2009 after she won the nation's hearts with a moving performance dedicated to her mother.

Cook's mother took her own life in 2000, and she and her younger sister found her body, she told judges Kyle Sandilands, Marcia Hines and Ian 'Dicko' Dickson during her audition.

She went on to detail how her mother's death affected her life.

'When I first turned up to audition I thought I had no chance, there were that many people about,' Ms Cook said.

'Being Mother's Day weekend when I went up for auditions, I thought it was appropriate.

'It was hard, but it came from the heart and I thought it would show the judges what I'm about.

'When I lost my mum I went mustering up north, and that's when I wrote the song - I usually keep my emotions all inside, but writing songs helps me get it out in the open.'