Turn crockpot on high heat

Melt butter in base of crockpot

Stir brown sugar into melted butter in crockpot and spread evenly

Place Pineapple slices on top of sugar and butter mixture

Place cherries inside holes of pineapple and in any other open spaces

Prepare cake mix per package directions

Spread cake mix over pineapples and spread evenly

Place paper towels over top of crockpot and place lid on top

Bake for 3 hours

Turn off crockpot and let cake cool 30 minutes

Remove lid and cool 30 minutes more

Place plate over top of crockpot and invert crockpot so cake comes out of the crockpot and onto the pan with pineapples facing up

Serve and store leftovers in refrigerator up to 3 days