Britney SpearsBritney Spears is reportedly planning to spend over $100,000 on cosmetic surgery over the next few months to help ensure her pop comeback is a success.

Britney started her planned treatment last month by having collagen injected into her lips - which, according to recent photos, looks infected and angry - and is also said to have already undergone liposuction costing $15,000 in Nevada last weekend.

A source claiming to be a friend of the star’s revealed the five hour surgery “was to remove flab on her stomach and cellulite on the back of her thighs. She said it was a bargain and that she should have done it sooner.”

Closer magazine reports that Britney plans further liposuction to get rid of her double-chin, a boob job, a nose job, a tummy tuck and chemical peels to ensure her skin looks fresh. But it’s not all about the surgery - the star is also said to be hiring dieticians and fitness trainers to make sure every aspect is covered.

The source added: “Britney rips pages out of magazines with pictures of the perfect body parts she wants. When she sees so many pictures of her in magazines it is impossible for her not to scrutinise every detail of her body.

“She is so insecure over how much her body has changed since becoming a mother. She has said she will do whatever it takes to get back to her best even if that means getting a helping hand through surgery.”

Britney is said to have called herself a “fat pig” after seeing footage of her MTV VMAs performance in September.