The Bjork shows were different and one was with Matmos. I think the other was with the choir of Icelandic women and Zeena Parkins on harp. The 'support' for one of those was someone playing what I would consider noise and a lot of the audience were not impressed. I'm still not sure who it was. There was a similar thing when Dandy Warhols supported David Bowie when he did the Meltdown show in London. They played noisy abstract stuff that was hard to listen to. Then we saw them both another time and Dandys played their hits. Bowie was pretty experimental on a lot of his albums and I was lucky to see him a few times.
The Flaming Lips are another experimental band I've enjoyed. Their live show was crazy.
We do overlap a fair bit.
RE: 5 Perfect Albums & "Incoming Signal" by I+everything