Steven Wilson has announced that Happiness III will be released as a 7 inch and digital single on 14th October.
This song was originally on the 4 ½ mini album, released at the beginning to the year, but a special 3.35 edit has been created for this single. The full length version has also been added to the CD edition of the Transience compilation (released on 16th September).
The B-side is a live recording of David Bowie's classic Space Oddity, recorded live at the Hammersmith Apollo Theatre on 27th January 2016, and performed as a duet with Ninet Tayeb.
You can watch a video of the performance here: