The two are not exclusive! I believe my first visit to Portland went something like: get off plane, beerfest, dinner (at a brewery), maple-bacon doughnut, more beer, sleep. But the important thing is that now you know.
FWIW, 'Voodoo Doughnut' (as seen on the label) is the name of the store; it is in downtown somewhere. Make sure to visit in person; it is a very Portland kind of place.