After arriving in London from Los Angeles in mid May 1968, to start work at the Beatles' Apple Corps headquarters at the invitation of her friend Derek Taylor, Chris O'Dell began a career that saw her become, in author Philip Norman's words, "the ultimate insider" in rock-music circles. In the space of two years, O'Dell witnessed first-hand a series of key moments in rock 'n' roll: she joined in the backing chorus on the song "Hey Jude"; she was on the Apple rooftop in January 1969 when the Beatles played live for the last time; she personally delivered the harmonicas for Bob Dylan's comeback performance at the Isle of Wight; and on the day Paul McCartney announced he was leaving the Beatles, she was there at George Harrison's Friar Park mansion when Harrison and John Lennon met to discuss the news. Later in the 1970s, O'Dell went on to work with the Rolling Stones, during the LA sessions for "Exile on Main St." (1972) and their subsequent "STP" US tour, and on Crosby, Stills, Nash &amp; Young's 1974 reunion tour and Dylan's Rolling Thunder Revue of 1975, but said her time with the Stones, she says, felt like a "climb "down" the ladder". Similarly, after working for Harrison and his wife Pattie Boyd during their first few months at Friar Park, from March to June 1970, she would always view the Henley estate as a spiritual home, and the Harrisons as her most important friends in the fickle world of the music business. O'Dell assisted Harrison in preparing for the recording sessions for "All Things Must Pass" (1970), helped him recruit musicians for the Bangladesh benefit concerts, served on his 1974 North American tour with Ravi Shankar, and was privy to the details that ended the Harrisons' marriage as well as that of Ringo Starr and Maureen Starkey.