lake If I dye my goatee bleach and then shave it, will it grow back to the original color (which would be black)?

We're doing a sociology project about folkways and decided to see how people will react if I bleached my beard). I'm just worried that my goatee will never go back to its original color if I do it, which is not until at least a week from now. I just wanted to know the risks before I decide to go through it.there