Harridan, along with a few other tracks on the record have been in the works since shortly following the bands tenth studio album The Incident, released in 2009.

[1][6][7][8] About the track and overall record, Steven Wilson stated:"Listening to the finished pieces, it was clear that this wasn't like any of our work outside of the band – the combined DNA of the people behind the music meant these tracks were forming what was undeniably, unmistakably, obviously a Porcupine Tree record.

The video is made up of distorted/twisted versions of the Closure / Continuation artwork presented on a TV in a dimly lit room.

Watch and find out..."[12] On 16 July 2022 the band also released a video of the song being performed at Air Studios.

[15][16] The song has been described as being a "journey that kicks off with funky bass" with "irresistible bass grooves", "jutting and pulsing rhythms", and "crashing drums" and "melodic percussion patterns" before transitioning into a more melodic middle section which "allows the outfit to reset and finish out the song in a more crushing heavy style" being described as almost extreme metal, continuing with swinging guitars & tribal-esque beats.

[18] The live version of the track was recorded and filmed at the 17,000-capacity Ziggo Dome in Amsterdam, Netherlands on 7 November 2022.