batch file for adding album art

I have a huge library that I am converting into a radio station. How can I add my logo to each of the files in a batch process instead of adding them individually?

Load audio the files into MP3tag.
Select all.
Press Alt-T to pen the extended tags dialogue
Press the New button next to the empty picture frame.
Navigate to the folder where you stored the logo and select it.
Click OK to save the modification.

Thank you very much. I was hoping it would be that easy. :rolleyes: