"My Christmas at home is usually crazy with lots of people around," she says in her festive message, telling us the top priorities for an idyllic holiday. "Lots of full bellies, lots of smiling, laughing and presents!"
The Cinderella Eyes singer, 31, first visited Great Ormond Street in 2004 with fellow Girls Aloud bandmates Sarah Harding, Kimberley Walsh, Nadine Coyle and former X Factor star Cheryl – and the charity has remained close to her heart.
"Please donate to Great Ormond Street so that children can spend Christmas with their families," she says.
We hope that you will join Nicola and HELLO! by supporting this very worthy cause. We all like to be with our loved ones this time of year. For the families of patients at Great Ormond Street Hospital, this is especially true.
With your support, Great Ormond Street Hospital Children's Charity could help fund family accommodation so mums, dads, brothers and sisters can stay close by, or help fund the creation of bigger rooms in new hospital wards so parents of the most seriously ill children can stay by their bedside 24 hours a day.
The charity also funds play specialists so that children can enjoy some festive fun despite going through very difficult times, and funds research and equipment that will enable the hospital to find new cures and save more lives.
Every donation to Great Ormond Street Hospital Children's Charity will help keep families together this Christmas. And be sure to check back tomorrow to find out which of our wonderful celebs will be popping out from door number 18!
Make a donation to GOSH CC online, or by texting FIVE to 70111*
*Texts cost £5 plus your standard network rate. Please ask the bill payer's permission. Great Ormond Street Hospital Children's Charity will receive 100% of your gift. We may contact you to tell you more about our work; if you would prefer we didn't text NOCALL GOSH to 78866. Great Ormond Street Hospital Children's Charity. Registered charity no. 1160024