We're not sure what happened, but you can see in this video Kenny Chesney is limping around the stage.
It all happened in Arrowhead Stadium in Kansas City. He appears to have injured himself, whether it be his knee or ankle.
The Kansas City Star reported that Kenny;
"Periodically doubled over in pain and gamely hobbled about in a small radius at the end of the stage's walkway for the last hour of the show."
Again, no official announcement has been made, but Kenny we're thinking about you!
Hope you're okay!