Frusciante’s guitar work here is not about flashy solos (though "Dani California" has a fantastic one). It is about texture . He uses the guitar as a synthesizer, a drum, and a choir. His backing vocals became so integral to the band’s sound on this album that Anthony Kiedis joked he felt like the "frontman of a duet." After the tour for Stadium Arcadium , Frusciante quit because he felt the music had become "too big" and the fame too oppressive. For a decade, this album stood as his majestic farewell. The gamble paid off. Upon release in May 2006, Stadium Arcadium debuted at #1 in 28 countries. In the US, it sold over 442,000 copies in its first week. It went on to win five Grammy Awards in 2007, including Best Rock Album. It was the first time the band had ever won a Grammy for "Best Boxed or Special Limited Edition Package"—a testament to the physical art of the album booklet and packaging.

In the sprawling pantheon of rock music, few bands have managed to navigate the tumultuous waters of fame, addiction, and creative rebirth quite like the Red Hot Chili Peppers. By 2006, the band—vocalist Anthony Kiedis, bassist Flea, drummer Chad Smith, and guitarist John Frusciante—was at a crossroads. They had survived the 1990s with Californication and the early 2000s with By the Way , but they wanted to make a statement. They wanted to be huge .

Over the course of a year, John Frusciante reportedly wrote over 38 complete songs, with Kiedis laying down lyrics at a pace he hadn't managed since Blood Sugar Sex Magik . The band initially wanted to release a standard 14-track album, but the quality of the B-sides was too high to ignore. They could have released any of the discarded tracks ("I'll Be Your Domino," "A Certain Someone," "Joe") as A-sides on any other artist's record.