The World is Welcome to Be the Fourth Haim Sisters Sister.

"Any idea when you're interviewing the Haim sisters?" a message reads. "I was hoping to ask if I can join as their fourth member."

There's just a key snag: The author likewise longs to be the Haims' additional sibling. And we're far from alone. Multiple famous admirers have openly petitioned for the honor.

It's clear a special quality is going on. The siblings Este, Danielle and Alana began their path performing shows at small eateries with their parents. Presently, they stand as multiple Grammy Award hopefuls.

In the tradition of the most iconic groups, they're a tight-knit unit. Their visuals frequently show them striding in sync down the streets of Los Angeles. In concert, they jam with such unfettered exuberance you find yourself thinking, "I'd love to be a piece of that, too."

"The numerous instances on tour that audience members came up to us and said, 'Seeing you perform, I picked up a drum kit'," remarks Alana, the most junior of the sisters. "That's the biggest compliment. It is a prize in itself. We've done our job if we can encourage people to form a group."

"Therefore anyone is invited to be the honorary Haim sister."

Grammy Milestone

The trio are connecting from home, where they're resting up after an major tour in for their new album, I Quit.

They're currently processing the news it's been nominated for best rock album at the Grammy Awards – with Haim the pioneering all-female band ever in contention for the prize.

"I follow the announcements every year, so it kind of feels like a surreal movie when your name is called," notes Alana. "I immediately called my sisters to say, 'Did I hear this correctly or am I dreaming'?"

The importance of the nomination resonates with the trio.

"We truly set out to make a guitar-driven album this time, so it's a significant milestone," says Alana. "But we're just thankful for the female artists that paved the way."

Personal Turmoil and Humour

The album came out of a time of emotional upheaval. All three sisters ended up single, and the music captures that odd transitional period where you're glad to be free, but not quite ready to start anew.

The themes track departures and partings. The sisters want love, but not the relationships they've experienced. You can hear them determining in real life who they aspire to be.

"That's a perfect way of putting it, yes," says Danielle. "I Quit is like a personal statement. You have to make an effort in ignoring the criticism and saying, 'I couldn't care less what people think'."

Evolution of Style

That developed toughness required a fresh approach – more unpolished and immediate than anything the band had done before.

For Danielle, who worked on producing the album, that started with the drum sound.

"The drum sound is such a detailed thing, and I focus so intensely about it," she says.

"'Journey of the drum sound' will be the name of our biography," laughs Alana. "I always say, our albums don't start until we find the perfect drum sound."

Experiences and Shared Laughter

The band's candor shaped the album's rollout, where the sisters disclosed some of their personal horror stories.

A former partner broke up with Este over a health consideration. Alana recalled a story of flying to spend New Year's Eve with someone, only to receive a casual gesture at midnight.

"During these breakups, you just feel like there's no light," explains Alana. "Therefore to be able to find humor in those stories and have them tell you more outrageous stories, it's incredible."

An Assured Legacy

One can easily sense a evolution in the band. These days, Haim are more certain of their position in the music world.

They're festival headliners, with chart-topping albums and an worldwide audience.

But the band will always be their top commitment.

"We have been making music since I was four," says Alana. "It's like no other path that we were meant to do. And I'm really fortunate we've gotten here and we're still kicking."