Irish pop star Jazzy switched on the Christmas lights at Children's Health Ireland at Temple Street.
The Crumlin-born singer, who broke through with her debut single Giving Me in 2023, was in attendance alongside six-month-old patient, Luke Harty, his family and Santa.
The event formed part of Children's Health Foundation's Save a Smile campaign.
The campaign serves as a "reminder that not all children will enjoy Christmas at home this year," according to the hospital.
"Hundreds of children will be spending the festive season in one of the Children's Health Ireland hospitals.
"We want every child, wherever they may be, to feel some magic of the season," it added.
