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Of their prior creative process together, Angus continues, "Malcolm and myself, a lot of what we had done through the years, we'd make notes with the tracks. Some might be a little bit rough here and there, and I polished them up. In other cases, Malcolm might have done just a small bit and then I would do the next verse. The bulk of the contribution of Mal is mainly musical."
Malcolm is credited as a writer on POWER UP, while the album features a now-solidified AC/DC line-up of Angus and rhythm guitarist (and Malcolm's nephew) Stevie Young, plus returning members Brian Johnson (vocals), Cliff Williams (bass) and Phil Rudd (drums).
And the record is also a tribute to Malcolm, with Angus explaining in a video last week: “I know Mal’s not with us anymore, but he’s there with us in spirit. This band was his baby, his life. He was always one [to say], ‘You keep going.’ His big line always, every now and again, he’d go, ‘If you’re a musician, it’s a bit like being on the Titanic. The band goes down with the ship.’ That’s how he viewed it.”