Back in the turbulent, game-changing 1960s, America celebrated, thanks to the pop songs of The Beach Boys, the wholesomeness and good vibrations of an idealized sunny Southern California with its pretty people, irresistible beaches and daily surfing.

This week a Disney+ documentary called, simply enough, “The Beach Boys” celebrates the group’s crowning achievement, the landmark “Pet Sounds” album on its 58th anniversary.

The film chronicles what began as a family business with the Wilson brothers Brian, Dennis and Carl, their cousin Mike Love and friend Al Jardine that became a global favorite. There’s never-before-seen footage and new interviews with Brian, the group’s presiding, troubled genius, Love and Jardine as well as musical fans Lindsey Buckingham, Janelle Monáe, Ryan Tedder, and Don Was.

“It’s quite an honor,” Jardine, 81, said during a virtual press conference. “We’ve all had the rich experience singing those great harmonies and we’re lucky we’ve been able to over the decades have a renewal with new fans and a whole new audience. We appeal to the ‘8 to 80’ group — and now we’re 80! I don’t know what’s left.”

“I’m honored and delighted,” added Love, 83, “that it coincides with the 60th anniversary of the ‘Endless Summer’ album.  We sing more than a dozen songs from that album every time we go onstage.

“The final shot at Paradise Cove,” he continued, “was where we did our first album cover. We sat with Brian and Al and the remaining members and it was amazing that Brian remembered some things from our childhood when we hung out together. We even sang a few. Al played the guitar, we sang some a capella stuff.

“It was a total joyous reunion in a sense because there’s been separations.  But when we get together, we unite through harmony and positivity.  There’s a basis of love. Respect for each other’s particular individual abilities.  Like, Al has a fantastic voice and sang on the Number One song, ‘Help Me, Rhonda.’ I created the words to Brian’s tracking.

“You do that song and everybody sings along.  We do ‘Good Vibrations’ — and it’s uplifting to people.  In this day and age, there’s so much negativity in the atmosphere, in the world. But our music brings positivity and harmony and love and hope.

“So, times change and individuals literally come and go.  When I look at the film, I feel some sadness because Dennis is gone, Carl’s gone.  Brian’s had his rough times. There is some sadness and melancholy there.

“But there’s an awful lot of appreciation for the work we did together and the love of music that united us even in spite of individual differences.”

“The Beach Boys” begins streaming exclusively on Disney+ May 24.