The World is Invited to Join as the Fourth Haim Sisters Member.

"Do you know when you'll be chatting with the Haim sisters?" a text reads. "My request was to ask if I can be their fourth member."

There is only a key snag: I also wants to be Haim's fourth member. What's more, we are not alone. Multiple celebrated fans have also petitioned for the honor.

It's clear a special quality is at play. Sisters Este, Danielle and Alana launched their career playing gigs at neighborhood delis with their family. Presently, they stand as multi-time Grammy hopefuls.

In the tradition of the best bands, they're a tight-knit unit. Their music videos frequently depict them marching in harmony down the streets of Los Angeles. In concert, they perform with such unfettered happiness you inevitably think, "I'd love to be involved in that, too."

"The amount of times on tour that audience members told us and said, 'Watching you live, I got a bass'," states Alana, the most junior of the Haim siblings. "It is the greatest honour. That is recognition in itself. We've done our job if we can encourage young girls to start a band."

"And thus anyone gets an invitation to be the fourth Haim sister."

Historic Nod

The group are speaking from their homes, where they're recovering after an major tour in for their fourth album, I Quit.

They're right now reeling from the news it's been nominated for best rock album at the Grammys – with Haim the very first all-female band ever in contention for the prize.

"I tune into the lists every year, so it kind of feels like an out-of-body experience when your name is announced," says Alana. "I immediately called my sisters to say, 'Did I hear this right or am I hallucinating'?"

The importance of the accolade resonates with the band.

"We deliberately set out to make a rock album this time, so it's a major achievement," adds Alana. "But we're just appreciative for the women that inspired us."

Personal Turmoil and Candor

The record was born from a period of personal change. All three sisters were single, and the music inhabits that unique in-between place where you're glad to be free, but not quite ready to let go.

The words track breakups and goodbyes. The sisters want love, but not the specific love they've got. You can hear them determining in real time who they want to be.

"That's a perfect way of putting it, yes," says Danielle. "I Quit is essentially a slogan. You have to actively work on ignoring the outside opinions and saying, 'I don't give what people think'."

Development of Sound

That newfound resilience required a fresh approach – more organic and powerful than anything the band had done before.

For Danielle, who helped produce the album, that began with the percussion.

"The drum sound is such a nuanced thing, and I care so much about it," she states.

"'Journey of the drum sound' will be the name of our book," quips Alana. "Our motto is, our albums cannot begin until we find the perfect drum sound."

Anecdotes and Shared Laughter

The band's candor fueled the album's rollout, where the sisters revealed some of their dating misadventures.

Someone ended things with Este over a health concern. Alana recalled a story of flying to spend New Year's Eve with someone, only to receive a casual gesture at midnight.

"When you're going through these heartbreaks, you just feel like there's no hope," says Alana. "Therefore to be able to share those stories and have them tell you wilder stories, it's incredible."

An Assured Legacy

You can clearly sense a shift in the band. These days, Haim are more assured of their standing in the rock pantheon.

They're major draws, with successful albums and an global following.

But the sister act will forever be their top priority.

"My sisters and I have been performing since I was little," says Alana. "It's like no other path that we were destined for. And I'm really thankful we've reached this point and we're still going strong."