But back to station flash mobs - that's hundreds of people meeting at an appointed time to do something - anything - the thing is they all do the same thing at the same time. Let's not forget that Victoria Station has been the home to several flash mobs.
I've never seen so many advance notices for a station flash mob in the UK before. It's been on the radio - in fact I'm hearing it on Heart FM as I type this blog post. It's being twittered. (here's me on twitter) Going round on emails. Everything.
The staff at Liverpool Street Station are certainly going to have a fun time.
UPDATE They came they saw they Rick Rolled
From Whatleydude's live blog of the event. Expect to see tons of different views of this on YouTube and any other video sharing site.
The video re-mix below by Rickrollerz rocks. Remember there was NO MUSIC at the actual event so they put this together by taking footage from loads of different people singing to song with their lips moving to exactly the right parts to the song.
I particularly like this picture from Orhan* and his description:
"The crowd, under the electronic board, at exactly 6pm started singing a song by Rick Astley called "Never Gonna Give You Up" to the bemused looks of the commuters watching the spectacle from the balconies, and around the concourse area. After about two minutes singing the crowd disappeared,and everything was back to normal again."
Mmmm really sounds like there was a lot of disruption to hard working commuters by a "bunch of slackers" then. See some of the comments below if you'd like to know what I'm referring too.