Originally a solo project of multi-instrumentalist and singer Shelby Logan Warne[1] in collaboration with guitarist Nikolas Jon Aarland, Kyros (known as Synaesthesia at the time) evolved into a full band in 2013, and their debut self-titled album was released in January 2014.

Having gone through a number of incarnations, Kyros dates back to 2009 as Shelby Logan Warne's solo music project under the working title of Chromology.

In 2012, she joined in collaboration with fellow Middlesex University student Nikolas Jon Aarland, who helped record guitar parts.

Nikolas was involved in the recording process of the early demos but left the project in 2013 soon after his parts were re-recorded at Aubitt Studios for the GEP release of the album.

[12][13] In early April 2014, the band announced that guitarist Ollie Hannifan would be taking what was then a temporary leave due to his commitments to stage production Mamma Mia!.

Joey became a full-time member of Kyros with the ability to contribute to writing sessions for future songs in addition replacing Ollie Hannifan for live concerts.

[17] In the Spring of 2015, the band opened for Marillion at the Wolverhampton Marillion Weekend event before making their North American debut at RoSfest[18] On 24 September 2015, the band announced via Facebook, newsletter, and their website that they would be changing their name from Synaesthesia to Kyros, effective from the end of the European Spock's Beard tour of 2015, on which they were a supporting act.

[21] To help fund their new album, as part of the same announcement, the band cited that they would be independently releasing a limited edition pressing of an EP titled BETA.

The album also features a full live brass section with parts arranged by Raymond Hearne, better known as the drummer of progressive metal band Haken.

Responding to fan queries via comments, the band had also stated that all of Sam's parts had been recorded for their upcoming third studio album Celexa Dreams.

John and Chris’ open-mindedness meant that they understood our desires to experiment and try out different styles, and that we would have a very clear-cut vision on how we wanted to go about executing our ideas.

I’m incredibly excited for what the future holds.”Mirroring Warne's enthusiasm, White Star Records’ Chris Hillman exclaimed:"We’ve been thoroughly pleased with the positive feedback we’ve had for the previous releases on our White Star Records label, but that also creates a pressure to ensure that future releases maintain a high standard.

Journalist Eden Kupermintz described the style of Rumour and the rest of Celexa Dreams as "a giant love letter to that sweet (and sometimes painful) time when progressive rock bands like Yes, Rush, and others were experimenting with the synth-pop sounds of the 80’s and early 90’s.

[35] On 7 May 2020, the band released their second single from Celexa Dreams, entitled Phosphene, which was described by Metal Mayhem Radio as "a dense, textural track that adopts a more deliberate pace into deep, ballad-esque territories.

We mature, we gain experiences and learn how to cope with certain situations as we grow older.”[37] Phosphene marked another push towards new territory as the band explored a slower-paced, ballad-esque approach to songwriting with inspiration taken from eighties ballads, modern synth pop and vaporwave.

[36] As a result of the 2020 COVID-19 Pandemic, the band had to cancel multiple shows and appearances as well as music video and press photo shoots leading up to the release of Celexa Dreams,[38] but they went onto to create their Celexa Streams: Isolation Gigs 'online tour' series on Facebook and YouTube, with seven live-streamed shows broadcast between April and September 2020.

[39][40] On 23 November 2020, Kyros announced that they would be releasing a surprise EP entitled Four of Fear, which would include four new tracks written, recorded, mixed and mastered entirely during the months of September and October 2020.

We wanted to see if this experiment of four different musical styles, yet with multiple common threads running between them would ‘work’ and we’re incredibly proud of the results.

Being truly afraid of being open because you fear other people fearing your true self.”[42] The band stated that during the COVID-19 lockdown period, they had managed to streamline an online workflow enabling them to fulfill the tight turnaround of recording, mixing and assembling their Celexa Streams: Isolation Gigs videos, and that they wanted to utilise this workflow to experiment with creating a new release.