The Dog Days of Denton brings together besties of all breeds for a doggone good day.

Who let the dogs out? You’ll finally find an answer to this decades-old mystery September 27 at the 21st annual Dog Days of Denton, where about 7,000 people will bring their best friends to the event’s new venue, the North Texas Fairgrounds.

Dog Days Director Kevin Lechler says the location change will allow for a more inclusive layout of the event.

This year’s spokesdog, a Great Pyrenees rescue dog named Solaris, will also have a longer “reign” than her predecessors because of a change in the date. While previous Dog Days were held in the summer, Lechler says moving it to September is better for the dogs because it is not as hot. “The weather is not as predictable in September, but at least we won’t have the temperatures of June,” he says.

Dog Days this year will feature the traditional pet tricks and dog singing (where dogs show off their best howls) contests, along with the highly-coveted Spokesdog Pageant. Owners submit an application with a photograph and a paragraph of why their dog would be a good spokesdog. Lechler says judges are told to look at candidates’ platforms and how they’ll promote Dog Days. “The more interesting he appears to the judges, the more attention they’ll pay.”

In addition to these events, Dog Days will also feature competitions such as the “Canine Couture Costume Contest” for the best dressed and the cutest; “Dancing with the Dogs,” with competitors bringing their own music and preparing a 30-second to one-minute routine; and “How Obedient is Your Dog?” where pooches are judged on how many and how accurately they respond to commands from their owners. Vendors will be on hand with a pooch-friendly products to purchase. Photographers will take “GlamFur” shots of the dogs with an assortment of canine accoutrements to choose from. Photos are $5 each.

Though it may not be heaven, all dogs are invited to bark up the right tree and bring their people to Dog Days of Denton. 9 a.m. - 4 p.m. September 27. North Texas Fairgrounds.