Sam Rivers, acclaimed bassist for the iconic nu-metal group Limp Bizkit, passed away on Saturday at the age of 48. While the band confirmed his death, they have not yet provided details on the cause or location. Rivers had previously undergone a liver transplant, suggesting ongoing health struggles.

In the 1990s, Rivers was instrumental in the formation of Limp Bizkit, joining forces with frontman Fred Durst. Durst later shared memories of these formative years in a heartfelt Instagram post. Together, they crafted a distinct sound that fused rock, metal, and rap, leading to the group’s rapid rise in the music scene.

“Sam Rivers wasn’t just our bass player — he was pure magic. The pulse beneath every song, the calm in the chaos, the soul in the sound,” the band wrote in an Instagram post. “From the first note we ever played together, Sam brought a light and a rhythm that could never be replaced. His talent was effortless, his presence unforgettable, his heart enormous.”

Their debut album, “Three Dollar Bill, Y’all,” released in 1997, marked the beginning of their ascent to fame. This momentum carried through to their third album, “Chocolate Starfish and the Hot Dog Flavored Water,” which debuted in 2000 and set a record for first-week rock album sales.

“He really did have an impact on the world and his music, and his gift is the one that’s going to keep on giving,” Durst said. “I just love him so much.”

Rivers faced significant personal challenges, including a battle with kidney disease that forced him to step away from the band for three years in the mid-2010s. He candidly discussed his health struggles and the impact of heavy drinking, which led to his liver disease and the subsequent need for a transplant.

“I had to leave Limp Bizkit in 2015 because I felt so horrible,” Rivers recounted to author Jon Wiederhorn for the book “Raising Hell.” He continued, “A few months after that, I realized I had to change everything because I had really bad liver disease. I got treatment for the alcohol and got a liver transplant, which was a perfect match.”

“I had to leave Limp Bizkit in 2015 because I felt so horrible, and a few months after that I realized I had to change everything because I had really bad liver disease,” Rivers told author Jon Wiederhorn for his book “Raising Hell.” “I got treatment for the alcohol and got a liver transplant, which was a perfect match.”

Rivers returned to the band in 2018 and was part of its most recent album, 2021’s “Still Sucks,” and single, “Making Love to Morgan Wallen.” The band is scheduled to tour Central and South America beginning in November.