"Saturnz Barz" is a song by British virtual band Gorillaz, featuring Jamaican dancehall artist Popcaan. The song was released on 23 March 2017. It was released as the first single from their fifth studio album Humanz. The song marks the group's comeback since 2012's "DoYaThing", although 2017 had seen the non-single release of the song "Hallelujah Money" which features English singer Benjamin Clementine. "Saturnz Barz" was produced by frontman Damon Albarn, Remi Kabaka and producer The Twilite Tone, and marks the group's first collaboration with Popcaan. A remix was released later by Banx & Ranx.

"Saturnz Barz" was recorded by Damon Albarn, Remi Kabaka and Anthony Khan (The Twilite Tone) in Jamaica. In an interview with Mistajam on BBC Radio 1, Albarn revealed that the planned collaboration with Popcaan almost didn't come to fruition "He (Popcaan) came with quite a few of his friends. The session started about midnight, 1:00 in the morning...We worked all into the night but at the end of it I wasn't really feeling it, I don't know why. Next day, we had a chat, communicated and he came in and he did this. I think this is quite different to anything else he'd ever done. It's very personal. It tells a kind of alternate narrative to a lot of the ideas within modern dancehall."

Gorillaz have always been known for their collaborations, as has been seen across their various albums, including their self-titled debut album, Demon Days and Plastic Beach, however, Albarn stated that the art of collaboration and the process of picking featured guests was not merely a "random selection" but was only people with whom he connects with. "After spending a few studio sessions together in Jamaica, we became fast friends. "Necessity is the mother of invention…and he came out with this. It just fitted perfectly...And we've got this crazy tune. I mean it doesn't sound like anything else!" he said in the same interview.

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