In a spayed crockpot pour in one can of peaches in heavy syrup and the other can of drained peaches.
Sprinkle in brown sugar and cinnamon on top of peaches and stir around.
Pour yellow cake mix on top of peaches covering all the peaches.
Take your stick of butter and cut it up into thin pieces. Layer it all over the top of the cake.
Cook on high for about 2 1/2 hours or until cooked through and golden brown. Serve warm with vanilla ice cream.