Campbell, along with Neil Finn, joined Fleetwood Mac to replace lead guitarist Lindsey Buckingham on their world tour in 2018–2019.

[2] On November 11, 2011, Rolling Stone magazine named Campbell in their list of the top 100 guitarists, coming in at number 79.

At the age of 16, his mother, Helen Barber, bought him his first guitar, a Harmony acoustic model which he later described as "unplayable" from a pawnshop.

[4] His first electric guitar was a $60 Guyatone, but playing a friend's Gibson SG (a model which Campbell would not own himself for many years) was a transformative experience.

[4] Like Tom Petty, Campbell drew his strongest influences from The Byrds and Bob Dylan, with additional inspiration coming from guitarists such as Scotty Moore, Luther Perkins, George Harrison, Carl Wilson, Jerry Garcia, Roger McGuinn, Keith Richards, Brian Jones, Jimmy Page, Mick Taylor, and Neil Young.

[7] Campbell co-produced the Heartbreakers albums Southern Accents, Pack Up the Plantation: Live!, Let Me Up (I've Had Enough), Into the Great Wide Open, Songs and Music from "She's the One", Echo, The Last DJ, The Live Anthology and Mojo, as well as the Petty solo albums Full Moon Fever, Wildflowers, and Highway Companion.

On April 9, 2018, Fleetwood Mac announced that Campbell would be joining the band along with Neil Finn to replace lead guitarist Lindsey Buckingham for their 2018–19 world tour.

[9] "It's rougher-edged [than Petty's material]," Campbell says of the group, "It's slightly over-driven, less polished, lots of Sixties influence: The Kinks, Led Zeppelin, The Animals.

[16] With Blue Stingrays With The Dirty Knobs Albums Singles With Stevie Nicks With The Spinners With Dwight Twilley With Don Henley With Lone Justice With Eurythmics With Bob Dylan With Aretha Franklin With Melba Moore With Peter Case With Brian Setzer With Matthew Sweet With Stephanie Mills With Warren Zevon With Williams Brothers With Randy Newman With Roy Orbison With The Graces With The Temptations With Tom Petty With Paul Carrack With Jeffrey Osborne With Jonathan Butler With Roger McGuinn With Paula Abdul With Jennifer Holliday With Bob Seger With John Prine With Joe Cocker With Tracy Chapman With Robin Zander With Michael McDonald With Jackson Browne With Christine Lakeland With Will Downing With Patti Scialfa With Randy Crawford With Taj Mahal With The Wallflowers With Johnny Cash With Mary J. Blige With Linda Ronstadt With Cracker With D'Angelo With Philip Bailey With Bad Religion With Tift Merritt With Rob Thomas With Neil Diamond With Dixie Chicks With The Dandy Warhols With Susanna Hoffs With Chris Hillman With David Garfield With Chris Stapleton With Margo Price With Ian Hunter With Ringo Starr