Monolith of Phobos is the debut studio album by The Claypool Lennon Delirium, consisting of American multi-instrumentalists Sean Lennon and Primus's Les Claypool, released on June 3, 2016. Reception The album received generally positive reviews from music critics, receiving a 70 rating on Metacritic. The album also received praise from the general public, sitting at an 8.6 user rating on Metacritic as of August 1, 2017. Track listing Personnel Les Claypool – vocals, bass, upright bass, Mellotron, drums Sean Lennon – vocals, guitar, Mellotron, drums, autoharp, cosmic rain drum Charts References 2016 debut albums Sean Lennon albums Les Claypool albums ATO Records albums Prawn Song Records albums