Michael Wayne Campbell is an American guitarist, songwriter, and record producer. Campbell was a member of Tom Petty and the Heartbreakers and co-wrote many of the band's hits with Petty, including 'Refugee', 'Here Comes My Girl', 'You Got Lucky', and 'Runnin' Down a Dream'. His work outside the group includes composing and playing on the Don Henley hit 'The Boys of Summer'. Campbell, along with Neil Finn, joined Fleetwood Mac to replace lead guitarist Lindsey Buckingham on their world tour in 2018–2019.
Marc Wallace Jordan is an American-born Canadian singer-songwriter, record producer, session musician, and actor. Covering a wide variety of genres, he has written songs for a number of well-known artists, including Diana Ross, Rod Stewart, Cher, Bette Midler, Chicago, and Josh Groban. He was named best producer with Steven MacKinnon at the Juno Awards in 1994 for 'Waiting for a Miracle' from Reckless Valentine. In early 2014, Jordan was named Chair of Slaight Family Music Lab at Norman Jewison's Canadian Film Centre.