Put the pork into your crockpot (I used a 7-quart crockpot).
In a bowl, mix the BBQ sauce and Dr. Pepper together. Pour this mixture over the pork.
Cover and cook on LOW for 8-10 hours. (I pulled mine out at 9:30 hrs. On a cutting board, I shredded it and put it back in the crockpot for another 30 minutes.)