Along with 12,000-or-so other people, I spent last night watching a 10m high brick wall being built - and it was quite a spectacle. No, this was no Grand Designs live on stage type show. This was the building of The Wall. Pink Floyd's Wall. Or more correctly The Wall built by the British prog' rock band's singer, bass player and songwriter, Roger Waters.
It's funny how the most popular show at Vector Arena this year - though Gaga might come close and Coldplay could possibly take the honours later in the year - was originally inspired by a bunch of repellant Pink Floyd fans.
Not that there were any of those types at the first of four Auckland performances of Waters' The Wall Live, with the three remaining concerts this week also sold out.
However, the story goes, that Waters came up with the idea for the double-album and rock opera out of frustration at some loathsome fans he came across at a concert in 1977. Not only did he start writing songs about alienation and disillusionment, both key themes of the resulting 1979 album, but he envisaged a stage show where a wall was built between the audience and the band.
Not that the fans minded being shunned in the name of Waters' art. Because The Wall became a landmark album in Pink Floyd's vast canon of releases - and now, more than 30 years on, this stage show is one of the world's highest grossing concert tours.
And you can see why. Though key Pink Floyd members David Gilmour and Nick Mason are missing, 68-year-old Waters and his band, conjure up a sonic pallet of tension, drama and over-the-top pomp during the two hour performance.