No Doubt's Gwen Stefani will join NBC's 'The Voice' as one of the guest coaches this year and she'll have a little help. Each season 'The Voice' employs a mentoring program where the coaches call upon another industry professional and Stefani didn't have to look far as her husband, Bush frontman Gavin Rossdale, will be her team's guest mentor.

Rossdale tells Access Hollywood, "I don't know how it came about, but it was just one of those things [where] the idea was mentioned. I wasn't even sure who was mentioning it -- and then it came around to, 'So, next week, you ready? You are gonna come and do this?"

The vocalist adds of his role, "It's a lot of pressure … That's their whole life right this moment! So I felt really responsible." He adds, "The main thing, from my perspective, is just to make sure that Gwen is so good and excellent like all the other judges on the show. It's just sort of to not interrupt and to normally let her speak, let her do her thing and I'm just like a side thing."

As for Stefani's thoughts on her hubby taking part, she stated, "He is super articulate and he has a really good opinion and he is smart and he's been doing a really good job. We both have, I think, a lot of experience in the sense that when you look back at all the shows and all the things we've done -- and I mean, we all met like touring together and doing hundreds of shows -- and it's so fun to be in the position to meet [all of the contestants]."

Season 7 of 'The Voice' begins on Sept. 22 on NBC.