Preheat your oven to 375°F (190°C).

In a small bowl, mix the brown sugar, garlic powder, onion powder, paprika, salt, and pepper.

Rub the spice mixture all over the pork tenderloin, ensuring it's evenly coated.

Wrap the seasoned pork tenderloin with bacon slices, securing them with toothpicks if needed.

Heat a skillet over medium-high heat with a little cooking oil.

Sear the bacon-wrapped pork tenderloin on all sides until the bacon is slightly crispy, about 2-3 minutes per side.

Transfer the pork tenderloin to a baking dish and sprinkle any remaining spice mixture on top.

Bake in the preheated oven for 25-30 minutes or until the internal temperature reaches 145°F (63°C) for medium-rare or up to 160°F (71°C) for medium, using a meat thermometer to check doneness.

Once cooked, remove from the oven and let it rest for 5 minutes before slicing.

Slice the Bacon Brown Sugar Pork Tenderloin into medallions and serve hot.