In answer to your questions...
@goonz In reference to Rapha, sure thing. Wear what you like as long as it doesn't conflict with the sentence below this one. Streetwear/casual wear rather than obviously specialist cycling equipment. I'll be in my navy Transfer Cross jacket probably.
Wear whatever's comfortable but we'd rather not have aero helmets/overshoes/bibshorts etc. We're trying to steer towards "people who have bikes" rather than "cyclists".
@ChainBreaker and @williamnujazz HHSB isn't essential at all, but I thought it would look interesting to those not versed in bicycles. After all, it's a music video for fans of a band, not fans of bikes.
@hippy This is a "Dylan Buffington twirl" - vimeo.com/94699118
Looking forward to seeing you guys there.