Papa Het spoke to French website Metal XS and talked about Kirk’s contribution on “Hardwired… To Self-Destruct”. He said:

Kirk was not part of the writing. Kirk obviously came in and did the solos. But Lars and I… You know, Lars and I always have done this, but with contributions from other people on their riffs and things. Kirk’s riffs weren’t there. I know he talks about him losing his phone and things like that with the riffs, but…

No, he wasn’t involved in the process. And Robert [Trujillo] was there. The intro to ‘ManUNkind’ is Robert; that is him, and it’s beautiful. But it is Lars and I doing what we always do — put the songs together.

The songs were all put together over the course of time — I would say maybe a year and a half. But the riffs… I mean, the riffs could have been around for a little longer. But there’s no… I mean, it’s all new. There’s nothing that was left over from other albums or anything, so it’s all new.

Some are riffs that were on my riff collection, and some were, ‘Let’s just go out and play,’ and some just came about there. So some are super fresh, and some are, obviously, from the last year.”

Click here to watch the entire interview.