Jet Williams visited The University of Kansas Hospital's Pediatric Unit.
"We came in and tried to light them up a little bit by doing some basketball tricks; some ball handling tricks," Williams said.
It's just one of the many things the Globetrotters do to help out in the community.
"We call this the smile patrol and what the Globetrotters are about, even at our games, is that everyone leaves with a smile on their face," Williams said.
Doctors at the hospital said a simple smile can help, even the sickest, kids feel better.
"Kids who are happier don't need as much sedation. They can tolerate the ventilator better," said Dr. Sarah Hoehn, Medical Director of the Pediatric Intensive Care Unit.
This is one of many trips the Globetrotters make to hospitals around the country.
"We consider ourselves ambassadors of goodwill," Williams said. "We're just happy that we can put a smile on their face."