Mix pineapple juice, soy sauce, and brown sugar in a medium sized bowl.

Put raw chicken tenders in crockpot.

Lastly pour mixture of pineapple juice, soy sauce, and brown sugar over chicken.

Set crockpot on low and let cook for 6-8 hours.

Serve over rice or anything you like.

Also this makes a good marinade for just about anything. And instead of cooking in the crockpot you can cook the marinated chicken on the grill.