John appears on a single track on French artist Catherine Ringer's new album, Ring'n'Roll; which was produced by his friend and the Wu-Tang Clan mastermind, RZA. He's soloing on the track titled Prends-Moi (Take Me), which is listed as number 5 on the album.
Here are a couple of review snippets:
RHCP's guitarist, John Frusciante, adds a remarkable contribution.
Catherine rocks on the more up-tempo tracks, which benefit from the sporadic help of John Frusciante, ex-guitarist of the Red Hot Chili Peppers.
You can (and should) buy the album if you like what you heard.
If you're interested or if you want to sing-a-long, here's the lyrics.
*Many thanks to Laurent and Sophie for the news and a huge apology for not having posted this a week ago - life's busy sometimes. This website's getting to its usual speed of updating ASAP.