I'd be more inclined to use this service if an open-topper was used on days where the forecast is sunny.
However I don't think I'd be leading punters in a sing-a-long if it were to be broadcast on YouTube. I don't mind performing for free for a private audience, as many ladies can attest, but I'd be wanting royalties for a televised show.
I have witnessed some horrible antics on open-toppers in my time. For example, a few years back I witnessed a young lad getting the mick taken out of him at a rally in Newcastle. I wonder whatever happened to him, I hope he's alright...
RE: New service X11