He said working with Pearce was a wonderful experience and he hoped the album would do well.
"Guy's a really prolific songwriter and I've heard a lot of his music.
"He was playing me some pretty cool stuff and I ended up playing drums on a couple of tracks - and so began our rewarding collaboration."
Barker is one half of popular blues/rock duo Swamp Thing with Grant Haua, is a former member of Australian band the John Butler Trio and has worked with Split Enz, Crowded House, the New Zealand Symphony Orchestra and has performed with Neil Finn to a sold-out Royal Albert Hall.
Pearce told the Rotorua Daily Post that Barker helped give him the confidence to take his music to a wider audience.
"We would get into discussions about music and what I was doing and I told Mike I'd been recording demos for years and hadn't done anything with them.
"He was really encouraging about what he heard and generous enough to offer to play drums for me.
"It then developed into bringing in Eddie Rayner and him setting up a recording session in Auckland at Neil Finn's studio (Roundhead) with Mike, Brett Adams and Jol Mulholland.
"So we recorded 13 songs in early 2011. Seven of them made it on to the record," he said.
Barker said he was impressed by Pearce's attention to detail.
"The outcome was pretty cool.
"Guy was really easy to work with too.
"Being a session musician I really like people who are quite particular with what they want from me.
"He's a really good guitar player too and also plays keyboard, some drums and the bass - he's a good all-rounder.
"There's a real depth in Guy's experience, he's been making music for 25 to 30 years and I think he loves that private world of music he can retreat to - it's really all his own personal expression."
Pearce said he'd like to continue with his music career, as long as people liked what he was doing.
"I've been making music for years, but I've just been in this odd situation of not feeling right about getting it out for various reasons - confidence, fear of hyper-scrutiny because of being an actor, and also just not wanting to 'cash in' as it were.
" Mike finally made me realise the importance of getting the music out of my system and being able to move on, so yeah, now that it's out I don't have any intention of stopping - unless of course enough people can't stand it."
He said he was surprised and humbled by the positive reviews and comments he'd received.
"Particularly as I know it's a tricky thing for people to have to listen to actor/musicians."
The album has received good reviews since its official release last week.
The UK's Guardian rated it four stars saying "an assured, confident debut album draws from the actor's genuinely appealing voice and a who's-who of New Zealand sidemen".
It was given three stars by the Sydney Morning Herald saying: "Broken Bones is a good record. One that at times (for example the gravelly groove of the single, Storm, and the crushed tone of the title track ) is a very good one."