On August 16, 2019, Josh Klinghoffer released his first solo single Io Sono Quel Che Sono B/W Menina Mulher Da Pele Preta under the name Pluralone. The single was made available on vinyl on August 30, 2019. The album featured two covers of non-English songs; Io Sono Quel Che Sono is a cover of Italian singer Mina, and Menina Mulher Da Pele Preta is by Brazilian singer Jorge Ben. Klinghoffer performed all instruments and vocals across these two tracks, with album art by Dot Hacker partner Eric Gardner.

Klinghoffer released a follow-up album titled To Be One With You on November 22, 2019 under the name Pluralone. The album features guest appearances from fellow and former Red Hot Chili Peppers bandmates Flea and Jack Irons, respectively. Members of Klinghoffer's band Dot Hacker also appeared along with former Jane's Addiction bassist Eric Avery.

His live debut as a solo artist will be opening for Pearl Jam in Toronto, March 18, 2020. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.