Graham says he enforced a dress code as he watched Rihanna shoot a video Monday in his wheat field in Bangor, east of Belfast, for her new single, "We Found Love." She's in Northern Ireland this week to perform three concerts.
The 23-year-old switched from a flannel checked shirt into a stars-and-stripes bikini, a red bra, a mesh black top, and finally went topless before Graham climbed off his tractor to protest.
"The state of undress was becoming inappropriate," Graham says. "I had a conversation with Rihanna. I hope she understands where I'm coming from. We shook hands."
Hordes of locals gathered to watch the pop star film the video.