Showbiz
REX
Allen has been attending the Harley Street Clinic of Susan Hepburn to undergo "brain reprogramming" sessions that help her lose weight.
The popstar has been paying £300 per session for the treatment, which reportedly helps individuals to associate a healthy lifestyle with happiness.
The singer told the Daily Mail: "After the hypnotism I want to go to the gym every day otherwise I feel really bad.
"I just want to get more toned and healthy. I'm really good at the moment - I've never been happier."
Speaking about Allen as a client, Hepburn commented: "Lily was great, a really nice girl. I'm glad I could help."
Other celebrities who have used hypnotism to lose weight in the past include Geri Halliwell, Sophie Dahl and the Duchess of York.
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