From some of the more-common photos of Tora Tora on the internet, it seems the NPG once promoted Exodus in the UK by performing a concert at a Virgin Megastore there (as if they were an indie band). Any future info on this (and remember, this is the same place where The Good Life reached #15 two years after original release).

It was an in-store signing for Exodus. No performance. There's some raw footage of this on YouTube.

Hello, this was Wednesday 5th April 1995.

Prince (Tora Tora) and the NPG did not perform at the Virgin Megastore on Oxford Street in London.

This was just a record signing.

When they left the venue, they immediately drove to Westway Studios to record their live performance for the Channel 4 TV show, 'The White Room'.

This was broadcast the following Saturday on 8th April 1995.

Considering they were releasing this album independently (NPG Records was never an imprint of WB like Paisley Park Records was), they were an indie band.