Myra Carvalho, 35, allegedly sent the Watermelon Sugar singer 8,000 cards in less than a month, including some wedding cards.

Carvalho is said to have sent the former One Direction star, 30, handwritten letters while in the UK and ordered a series of cards for him online which were sent to his address.

Two letters were hand-delivered to Styles' address, Harrow Crown Court heard on Tuesday.

Court documents showed Carvalho was staying at a backpacker hostel in Earls Court, West London, after arriving in Britain in December.

Her family was unaware she had travelled to the UK, the court heard.

Wearing a black coat and gloves, Carvalho appeared at the court via video link from HMP Bronzefield in Surrey.

She spoke only to confirm her name during the brief hearing and did not indicate a plea.

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Judge Karim Ezzat ruled the case should be heard at the same court on 19 April.

The defendant was remanded in custody.