Kelly Clarkson brought some Christmas cheer to a hospital in Nashville, Tennessee on Friday (21Dec12) by singing for a group of sick children.

The Since U Been Gone hitmaker dropped by the Monroe Carell Jr. Children's Hospital to lead the kids in a sing-along as part of a visit organised by the Musicians On Call Nashville program, which brings music to the bedsides of hospital patients.

The singer performed a special acoustic set for the patients, their families and staff inside the Children's Hospital Theatre before leading the children in a sing-along to festive classics Rudolph the Red Nose Reindeer and White Christmas.

Following her performance, Clarkson visited the rooms of the patients who were unable to attend and said, "This is such a special time of year and I'm so happy to spend it with all of these great kids. I'm probably having just as much, if not more, fun than they are."

Clarkson joins fellow artists such as Darius Rucker, Blake Shelton and Martina MCBride in supporting Musicians On Call Nashville.