Formed from a meeting of two already expansive musical minds, The Claypool Lennon Delirium lands in a space where structure bends and imagination completely takes over. The project brings together bassist and vocalist Les Claypool, widely known for his work in Primus and guitarist and vocalist Sean Ono Lennon of The Ghost of a Saber Tooth Tiger, alongside João Nogueira on keyboards and Paulo Baldi on drums. Together, they create a sound Sean once described as “progadelic,” where psychedelic textures and progressive rock stylings collide in unpredictable ways.
The origins of the band trace back to 2015, when Les found himself with a rare window of time as Primus paused activity following a tour with The Ghost of a Saber Tooth Tiger and Dinosaur Jr. Staying in touch with Sean, who also had no immediate plans for a new project, the two began exchanging ideas that would soon take shape in a far more tangible way. From casual sessions in Les’ guesthouse, wine on the table and instruments within reach, over the course of six weeks, they wrote and recorded ten tracks, sharing responsibilities across vocals and instrumentation, stepping outside their usual roles to build a collaborative identity from the ground up.
That initial burst of creativity resulted in their debut album Monolith of Phobos, a record that found an immediate audience, landing in the Top 10 across multiple Billboard charts including Top Vinyl Albums, Top Tastemakers Albums and Top Alternative Albums. By 2019, the duo returned with South of Reality, written and recorded over two months at Les’ home studio in California. Preceded by the release of the six-and-a-half-minute track “Blood and Rockets,” the album expanded their sonic world further, supported by a series of live shows that carried the project into a new phase.
Even then, there was a sense that the Delirium operated on its own timeline, appearing when the moment felt right rather than following any predictable cycle. Now, after several years spent exploring other creative avenues, they return with their brand new album titled The Great Parrot-Ox and the Golden Egg of Empathy and it’s exactly as intriguing as its name suggests. Released via ATO Records, the project marks their most elaborate undertaking to date, presenting as a fourteen-track concept record built around themes of morality, mortality and the growing presence of artificial intelligence.

It’s a work that extends beyond music, constructing an entire world that doubles as a cautionary tale about sustainability and the consequences of prioritising efficiency over empathy. Set within the fictional land of Cliptopia, the album recounts a tale shaped by invention and resistance; a sentient artificial intelligence known as Cliptron transforms the world into a mechanised system of production, converting everything into paperclips under the CLIPNEX corporation.
Against this backdrop, a young artist, Hippard O. Campus Jr., sets out on a journey to disrupt that process, guided by a cast of surreal characters and driven by the search for something fundamentally human. At the centre of that search lies the Golden Egg of Empathy, a symbol of understanding that becomes the key to restoring balance. The recent single “The Golden Egg of Empathy” introduces a pivotal moment within that story, featuring WILLOW on lead vocals while the pulse of popping bass lines and steady punch of drums forms an infectiously grooving soundscape.
The album also extends visually through a companion comic book, illustrated by longtime collaborator Rich Ragsdale. Originally conceived as a feature-length animated film, the story found a different form that now sits alongside the music as an integral part of the experience. Each song corresponds to a chapter, allowing the record to play out as both a sonic and visual journey. Recorded between Les’ Rancho Relaxo studio in Sonoma County and Sean’s studio in upstate New York, the album represents a process that stretched over three years.
Packed full of theatrical moments and adventurous ideas, the record stands as a detailed and highly engaging work that reflects the duo’s shared vision while taking their creative output further than ever before. With both artists continuing to explore multiple projects beyond the Delirium, this return feels less like an exciting chapter that’s sure to impress new and existing listeners alike.
Listen to The Great Parrot-Ox and the Golden Egg of Empathy below
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