updated 09/27/2011 AT 10:00 AM ET
•originally published 09/27/2011 AT 11:00 AM ET
He stopped the music.
Rihanna, 23, was dancing in a red handkerchief bikini when Alan Graham, 61, noticed her and drove over in his tractor to put a stop to things.
“I have an ethos and I felt it was inappropriate,” Graham told the BBC. “I requested them to stop and they did.”