New Delhi, Dec. 14 -- Neil Diamond may have famously sung about being a "Solitary Man", but the legendary singer's real life tells a very different story. Married to talent manager Kate Diamond for nearly 14 years, the 84-year-old icon continues to share a partnership rooted in friendship, mutual respect and a shared love of music.

Speaking at the New York City premiere of Song Sung Blue on Thursday, December 11, Kate reflected on what has sustained their marriage over the years.

"We're best friends, and we really support each other. We lift each other up, and through thick and thin, through sickness and health, we really live it. And I think that that's the secret," she told PEOPLE.

She also revealed that another milestone is around t...