Country singer Keith Urban and wife, actress Nicole Kidman, sang Amazing Grace on Friday for staff and families at a children's hospital in Australia.

The couple were in Kidman's home country for the Swisse Celebrate Life Ball in Melbourne and made a stop Friday at Monash Children's Hospital to meet with patients and their families.

Urban whipped out his acoustic guitar at one point and led the crowd in singing Amazing Grace.

Someone on hand caught the whole act on video: