Pop rockers Fun surprised children at a New York hospital last week by performing an acoustic set to lift patient's spirits.

The "We Are Young" hitmakers visited the New York-Presbyterian Morgan Stanley Children's Hospital on Tuesday as part of the "Get Well Soon Tour initiative," which sees famous faces spread a little cheer to sick youngsters.

Following their set, the trio toured the facility and visited patients on wards, posing for pictures and chatting with them.

Justin Bieber, Britney Spears and Bruno Mars have previously taken part in the hospital visiting tour.