Ability to replace/provide the same Album Art to multiple Albums

I have a lot of music that is not within your database. I have a lot of LIVE Shows, personally recorded music, cassettes converted to digital, etc. I would simply like to be able to take say, 20 different albums and give them all 1 image that would be placed within each Album.

Example: LIVE Show - Allow me to provide a single image that says "Live" and place that with each album