Veteran soul singer Bobby Womack died Friday.

Womack’s sister says he passed away in his sleep … she says they don’t know the cause of death.

Bobby struggled with multiple health problems throughout his life … including diabetes, pneumonia, colon cancer and the early signs of Alzheimer’s.

Bobby and his brothers formed a group in the ’60s called “The Valentinos” and they recorded the song “It’s All Over Now” before the Rolling Stones released their version — the group’s first #1 hit.

Bobby also recorded the songs “Across 110th Street” and “If You Think You’re Lonely Now.”

In 2009, he was inducted into the Rock and Roll Hall of Fame.