Tail lights not working on Honda Shadow?

I noticed when coming to work this morning. I haven't had a chance to look at it. I'm gonna have to do it tonight as its my daily driver. I don't want to spend all night trying to figure out what it is, so any suggestions on what to check first would be much appreciated.The front directionals still work. The rear lamps don't, nor do they work when the brake is applied.Maybe a fuse? Let me know what you guys think I should check first. Thanks!

Check the fuse. If it's good, check the voltage going into the break switch and coming out. Should be pretty simple.

it is a blown fuse