Kia introduced the second generation (JB) in the early 2005 model year in Europe and for model year 2006 in North America, based on a redesigned platform shared with the Hyundai Accent.
It may be an indication you need a brake job. Brakes have pieces of metal that will contact the rotating part of the brake to make a sound when the brake pads get thin. Normally, brake pad replacement happens about every 50,000 to 70,000 miles. Sooner if you drive with 2 feet.