Hollywood is full of weird and whacky health crazes but have you ever thought about turning to hypnotherapy? Some of the planet's biggest stars have turned to the relaxation therapy to achieve their goals. Could you do the same?

The 'Die Hard' star used hypnosis to overcome stuttering when he was a teenager and after reportedly completing the treatment went on to become one of the most accomplished actors in Hollywood.

The Duchess of York was previously married to Prince Andrew - the son of the late Queen Elizabeth II - from 1985 until their 1996 divorce and after undergoing hypnotherapy, she wished she could go back and give things another go with him. While under hypnotherapy as part of a reality show, she said: "I wish we’d never got divorced."

The 'Good Will Hunting' star turned to hypnotherapy to ditch his tobacco habit after struggling to stub out for good. Damon says it was the "the greatest decision [he] ever made [his] my life".

The Spice Girls singer turned to hypnosis to help her lose weight. She said: "After the hypnotism, I want to go to the gym every day, otherwise I feel really bad."

The golf legend turned to the therapy so he can remain focused ahead of a big round. He is thought to have first tried the hypnotherapy method at the age of 13 and has practiced it ever since.

The former Black Eyed Peas star found herself in the grip of addiction and took up hypnotherapy so she could get her life back on track. She said: "I had to learn self-love and I learned it through hypnotherapy. It's not some fruity thing - it's not like you're going to a psychic or something."

The 'Pirates of the Caribbean' star was reportedly so addicted to chocolate as a child, his mother turned to the aid of a hypnotherapist to help him kick the habit of gorging on the sweet treat.

'Smile' singer Lily Allen used hypnotherapy to shift some pounds in 2009. She said: "After the hypnotism, I want to go to the gym every day, otherwise I feel really bad." Her hypnotherapist later said: "I taught Lily to favour healthy, low-fat meals instead of junk food and to see that alcohol… is just extra calories that sabotage your efforts to get a good body."

The former 'That '70s Show' star has used hypnosis for various reasons over the years, initially in the beginning of his career to evisage himself as a successful actor but more recently to help him quit smoking. Ashton would later insist that it "really works" and he had used a recording of himself which he listened to on repeat.

The 'Someone Like You' songstress lost 100lb over two years and admitted that hypnotherapy was a key part of her success, reportedly with the help of celebrity hypnotist Susan Hepburn. Hepburn said: "I change my clients' mindset to boost their self-esteem. They just lose the emotional hole that makes them think of food the whole time."