I miss the pre-monitized internet. I emailed Jonathan Coulton and asked if I could bring my uke to a show and join him in stage. I don't know why I thought he'd say yes, but he did said yes. I met up with him in the green room and we did a quick rehearsal then on stage he called me up and we performed a song. Surreal.

I have never been able to successfully replicate this sequence of events with another musician though....