Miley Cyrus has hopped into bed with Ashton Kutcher - but it's only for a scene in Two And A Half Men.

The former Hannah Montana star leaves her Disney past behind as she swaps preppy clothes for sexy nightwear and a peroxide blonde pixie hairdo for her guest role in the tenth season of the hit TV show.

The 19-year-old will star in two episodes of the new series as Missi, an old family friend of internet billionaire Walden Schmidt, played by Ashton.

Her character comes to visit for a week and develops a relationship with Jake (Angus T Jones) when he comes home from the Army. In other scenes, Ashton's character is seen spraying suncream on her bikini-clad back.

Other special guests confirmed to appear on the programme include True Blood's Brit Morgan as Jill, a woman whom Walden's alter-ego meets at a bar and takes back to his beach house, and American singer Michael Bolton.

The new season of Two And A Half Men airs on Comedy Central from October 1 at 9pm.