Black Knights debuted two new songs off The Almighty and performed Medieval Chamber at Low End Theory in LA...with John as their sound man. This was his first onstage appearance in almost four years.

Present on all studio recordings up to 2015 thus hyping the up-and-coming band; John joins Swahili Blonde onstage for one song, Dr. Teeth, at their album release party.

Them Hills closed a night at the Trobadour headlined by then up-and-coming WarPaint and John and Josh joined them on stage for a cover of New Order's Ceremony.

After the Rock4Change event was cancelled despite the hype surrounding it due to low ticket sales; John, Josh, Flea and Stella Mozgawa filled a spot after WEAVE! and WarPaint (which Stella was not a member of at the time) at the Troubadour thanks to last-minute line-up changes.

At the end of Kenan Bell's Monday night show (which Josh Klinghoffer played throughout), John jumped onstage during the last song, Good Day. He initially played keyboard, but then he switched instruments with Jon Siebels (formerly of Eve6) and played guitar.

John rocks the stage at Roxy for Shavo Odadjijan's birthday party and the promotion of the Armenian-American bassist band's first single; alongside a very versatile group of musicians.

Dave Gahan of Depeche Mode assembled an all-star back-up band to perform a cover of Policy of Truth at the Third Annual MusiCares MAP Fund Benefit Concert To Honor Chris Cornell And Jeff McClusky. The band? Victor Indrizzo, Vincent Jones, Martyn LeNoble, Josh Klinghoffer and, of course, John Frusciante.

Commonly known as the "Federation Square Jam", this event was filmed for Chad Smith's Eastern Rim DVD. The jam band featured John, Josh, Flea and the star of the day.

For the last of their shows with the Red Hot Chili Peppers in 2006, John joined the Watt and his band for a total of four songs.

For the fourth time in a row, John joined the band onstage for one song.