Actor Charlie Sheen's estranged wife Brooke Mueller has reportedly been roped in to star in a lifestyle-themed reality show with socialite Paris Hilton.

Mueller's spokesperson insisted that she is in an 'intensive, physical fitness programme in Southern California', adding that she is not in rehab or any type of 'stress management facility', reports femalefirst.co.uk.

Earlier this year, Brooke - who split from the 'Two and a Half Men' star after he was arrested during the festive period over domestic violence allegations - said she is feeling better than ever after receiving rehab treatment.

She said at the time: 'Mentally, I feel really clear and spiritually, I feel really connected. I'm doing good.

'I want to put my priorities straight, and to focus on doing the next right thing in front of me. As long as I do the next right thing, I'll be all right

'I'm hiking, listening to music, reading, going to bed early - and waking up early and just being healthy. And juicing. I love my juice bar.'