Alligator Soul Everett WA UU represent?

I'm at an awesome resteraunt called Alligator Soul, listening to the Northwest Jazz Collective and when I went to use the mens room I noticed that there was a chalk board above the yernal (sp?).

Well to my surprise, it read Ukulele Underground! I couldn't believe it. I wrote TJF was here underneath. I got a picture but being on my phone I can't post it until I get home. Who did this and how awesome is that!?