DAVE GROHL: 'I'm Not Ready To Stop, But If It All Ended Today, I'd Be The Happiest Person In The World'

FOO FIGHTERS frontman Dave Grohl says that he is "very proud" of what he has accomplished, but insists that he still doesn't think he "[has] done [his] best thing yet."

The band's new studio album, "Sonic Highways" was recorded in eight different iconic studios in eight different cities over the course of a year.

FOO FIGHTERS laid down the music for the album in cities that have a great musical history and invited local legends to contribute to the sessions as well.

The results have been chronicled in an eight-part documentary series, called "Sonic Highways", that frontman Dave Grohl directed. The series premiered on HBO last month.

Grohl interviewed a number of personalities for the series, including Slash, Dan Auerbach of the BLACK KEYS, LL Cool J, Bonnie Raitt, Dolly Parton, Willie Nelson, Pharrell Williams, Joan Jett, CHEAP TRICK ‘s Rick Nielsen, Paul Stanley of KISS, Joe Walsh, ZZ TOP's Billy F. Gibbons, Macklemore, Buddy Guy and even President Barack Obama.

In a brand new interview with Esquire magazine, Grohl was asked if the "Sonic Highways" series makes him think about his own legacy and where he fits fit into that, even if he is not supposed to look back.

"No," he responded. "First of all, I'm so goddamn busy I can't spend time thinking about anything outside of what I have to do today. There are times where I will sit down, take a deep breath, drop my shoulders, and I just kind of breathe and deflate. But I'm not kidding — that happens about once a year for three and a half minutes. In that time, I can really appreciate it."

He continued: "I'm very proud of what I've accomplished. But I still don't think I've done my best thing yet. I've always felt like that. I've always felt like the next record is going to be the last record. You have to say, 'This next one is going to be the last one, so we have to make it good.' We've said that eight times in the FOO FIGHTERS across 20 years, every record. Just keep moving."

Grohl added: "There's so much more to look forward to. That's something I learned after NIRVANA was over. When Kurt [Cobain] died, I had this whole new outlook at life, that we're all so lucky to be here.

"You can't take life for granted. It's short. It's fragile. And you don't know when it's going to be taken away from you. So the short time that you're here? You just have to kick ass the whole time and not look back. That's basically what I try to do.

"I'm not ready to stop, but if it all ended today, I'd be the happiest person in the world."