This horrible sound from a Kia wheel area is the hub bearing which could have been a disaster by way of a wheel potentially separating from the hub itself.

Typically you will hear a moaning noise that will increase as your vehicle speed increases, as well as a fluctuation of this noise as you engage left or right turns, depending which side is the culprit bearing.

Taking care of this repair sooner or later will keep you from having to replace other suspension or steering components, including wear to tires, that can ultimately wear out like a domino effect from excessive lateral play.