LONDON - JUNE 19: John Frusciante of the Red Hot Chili Peppers performs on stage during the first London date of their tour, at Hyde Park on June 19, 2004 in London. 85,000 fans have brought tickets to the concert, making it their biggest UK date ever. (Photo by Jo Hale/Getty Images)

To celebrate guitarist John Frusciante’s 50th birthday, a deep-dive into his work with the Red Hot Chili Peppers and beyond.