Legendary bassist John B. Williams, the celebrated musician best known for his years on The Tonight Show Starring Johnny Carson, is now in hospice care as his health continues to decline.

Williams, who helped provide the smooth, unmistakable sound behind some of late-night television’s golden years, is being cared for around the clock by nurses, according to TMZ.

His wife, Jessica Williams, told the outlet that the beloved musician recently suffered a serious fall and had to undergo brain surgery because of his injuries. She said Williams had already been living with dementia before the fall, but the accident sharply sped up the progression of the disease.

Now, the heartbreaking situation has left the longtime performer unable to walk or speak.

According to Jessica, one of Williams’ final conversations was with his daughter.

For fans of classic television and jazz, Williams was more than just a face in the band. He was part of the soundtrack of American entertainment.

He spent seven years as the house bassist for Johnny Carson’s legendary late-night show, performing during the era when The Tonight Show moved between New York City and Los Angeles. His steady rhythm and deep musical talent helped support one of the most iconic programs in television history.

Williams later brought his gifts to another major stage, spending nearly six years as a prominent member of The Posse, the house band on The Arsenio Hall Show.

But his career stretched far beyond late-night television.

Williams worked with some of the biggest names in jazz, including Count Basie and Louis Armstrong. He also spent 25 years playing with the Nancy Wilson Trio, after being tapped to join the group shortly after forming his own band, Expectations, in 1975.

Music was in Williams’ blood from the beginning.

After serving in the United States Marine Corps in the early 1960s, he returned to his lifelong passion. In 1974, he studied music at the experimental International College in Los Angeles, then quickly began building the career that would make him a respected name among musicians and jazz fans alike.

As the years went on, Williams scaled back his collaborations and turned more of his focus toward solo work.

In 2024, he released The African Queen, an album dedicated to jazz pianist and composer Horace Silver. Williams called the project his “finest work to date,” a powerful statement from a man whose career had already spanned decades, genres, and generations.

Now, as Williams remains in hospice, his legacy lives on through the music he made, the stars he played beside, and the millions of viewers who heard his sound without always knowing the man behind the bass.

From Johnny Carson’s stage to jazz clubs and recording studios, John B. Williams left a mark on American entertainment that will not be forgotten.