Lucy Lou was a very good girl. She served Rabbit Hash loyally from 2008 until 2016.

Rabbit Hash Mayor Lucy Lou
Credit: Facebook/J Sheridan Photography

We're heartbroken to report that Lucy Lou, the first female mayor of the tiny Kentucky town of Rabbit Hash, crossed the rainbow bridge last week.

According to The Cincinnati Enquirer, Lucy Lou, a pretty brown and white Border Collie, passed away due to age-related illness on September 10, 2018. She was 12 years old. And yes, she was a dog.

Rabbit Hash and its population of just over 300 have enjoyed a 20-year string of canine mayors. Lucy Lou—the Boone County town's third canine mayor—served Rabbit Hash loyally from 2008 until 2016, when she handed the office over to Brynneth Pawltro, a rescued female pit bull.

The Rabbit Hash Historical Society holds mayoral elections to fundraise for community projects every four years or so. Each vote costs $1 and residents can cast as many ballots as they want. In 2008, Lucy Lou beat out 10 other dogs, a cat, an opossum, and a donkey for the prestigious position.

WATCH: The Mayor of This Tiny Kentucky Town is a Dog!

Lucy Lou's campaign manager and owner, Bobbi Kayser, posted an emotional tribute to the very good girl on Facebook Monday.

"She was an astounding canine who brought joy to many more people than just her immediate family," wrote Kayser. "I'm so proud to have known her and shared these short years on earth with her. Run free and easy, sweet girl. Momma loves you."

R.I.P. Lucy Lou!