The Liverpudlian singer, 28, stepped out oday (2 January) for a breath of fresh air and donned the knitted number to keep her head warm.
The dark woollen hat features two pompoms on top - almost like ears - and Nicola has posed for a picture so they're just poking into view.
Alongside it, Nicola commented: "Day in the forest <3"
Nicola spent the festive period with her family and, now her Girls Aloud days are behind her following their split last year, she is planning big things for 2014.
Posting a snap of the Taj Mahal on Twitter, she revealed: "In my new year I would love to go here.. I've always wanted to see it.. The Taj Mahal, India."
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