The Claypool-Lennon Delirium is a psychedelic rock duo formed in 2015 by Les Claypool (Primus) and Sean Lennon (The Ghost of a Saber Tooth Tiger). Across albums including Monolith of Phobos, South of Reality and Lime and Limpid Green, the duo blends prog, psych, and surrealist storytelling into a sound rooted in late-60s and early-70s experimentation.