May 2016 Harry Styles posted a picture of a braid that was cut from his characteristic long hair. In his Instagram post he mentioned the Little Princess Trust to which he donated his hair. 

In honour of his 23rd birthday we have decided to raise money for this lovely charity, to help put smiles back on children's faces as they go through unbelievably hard times.

With our current target of £1,000 it's possible to finance up to two wigs. 

More about the charity:

The Little Princess Trust is a children’s cancer charity and our mission is to supply real hair wigs to children suffering with cancer, for the duration of their treatment.  However, in addition we assist children with other conditions which also result in hair loss, the most common being alopecia.  Our commitment to these children is different.  Despite being set up to help children with cancer, the Trust is able to supply children that do not have a cancer diagnosis with a single wig.  Whilst we are unable to commit to supplying more than one wig, we hope that this gesture will help the child and family whilst they decide on their long-term plans for dealing with this sort of condition.

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Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving - they'll never sell them on or send unwanted emails. Once you donate, they'll send your money directly to the charity. So it's the most efficient way to donate - saving time and cutting costs for the charity.