The birthday bash included a cake and a trip to a posh dog spa. Chanel's owner, Denise Shaughnessy from Long Island, New Jersey, rescued Chanel from an animal shelter when she was just six weeks old.
So, what's the secret to Chanel's longevity? Shaughnessy says she treats her pooch like a human and rewards her with special dog treats every day.
In her younger days, Chanel would run three miles a day with her owner. She still enjoys a walk, but now Shaughnessy carries Chanel for most of it.