Sam Moore, the surviving half and higher voice of the 1960s duo Sam & Dave that was known for such definitive hits of the era as “Soul Man” and “Hold On, I’m Comin,'” has died. He was 89.

Publicist Jeremy Westby said Moore died Friday morning in Coral Gables, Florida, due to complications while recovering from surgery. No additional details were immediately available.

Moore, who influenced musicians including Michael Jackson, Al Green and Bruce Springsteen, was inducted with Dave Prater into the Rock and Roll Hall of Fame in 1992.

At the Memphis, Tennessee-based Stax Records, Moore and Prater were second only to Otis Redding. They transformed the “call and response” of gospel music into a frenzied stage show and recorded some of soul music’s most enduring hits, which also included “You Don’t Know Like I Know,” “When Something is Wrong With My Baby” and “I Thank You.”

Most of their hits were written and produced by the team of Isaac Hayes and David Porter and featured the Stax house band Booker T. & the MGs, whose guitarist Steve Cropper received one of music’s most famous shoutouts when Sam & Dave called “Play it, Steve” midway through “Soul Man.”

Like many ’60s soul acts, Sam & Dave faded after the 1960s. But “Soul Man” hit the charts again in the late 1970s when the Blues Brothers, John Belushi and Dan Aykroyd recorded it with many of the same musicians. Moore had mixed feelings about the hit becoming associated with the “Saturday Night Live” stars, remembering how young people believed it originated with the Blues Brothers.

In 2008, the movie “Soul Men” depicted a pair of aging, estranged singers who bore more than a little resemblance to Sam & Dave. Moore lost a lawsuit claiming the resemblance was too close.

He also spent years suing Prater after Prater hired a substitute and toured as the New Sam & Dave. Prater died in a 1988 car crash in Georgia.

Moore also pressed legal claims that the record industry had cheated him out of retirement benefits. Moore and other artists sued multiple record companies and the American Federation of Television and Radio Artists in 1993.

“Two thousand dollars for my lifetime?” Moore said then. “If you’re making a profit off of me, give me some too. Don’t give me cornbread and tell me it’s biscuits.”

Moore wrote the song “Dole Man,” modeled on “Soul Man,” for Republican Bob Dole’s presidential campaign in 1996. In 2017, he was among the few entertainers who performed for Republican President Donald Trump’s inaugural festivities. Eight years earlier, Moore had objected when Democratic presidential candidate Barack Obama’s campaign used the song “Hold On, I’m Comin’.”

Moore was born Oct. 12, 1935, in Miami and got his start singing in church.

He and Prater performed in soul and R&B clubs in the 1950s but didn’t meet until 1961 in Miami. Moore helped coach Prater on the lyrics of a song and they quickly became a popular local duo. In 1965, after signing with Atlantic Records, producer Jerry Wexler sent them to the label’s Stax subsidiary in Memphis.

Moore and Prater argued often and Moore told the AP in 2006 that a drug habit, which he kicked in 1981, played a part in the band’s troubles and later made entertainment executives leery of giving him a fresh start. The duo broke up in 1970 and neither had another major hit.

He married his wife, Joyce, in 1982, and she helped him get treatment for his addiction which he credited with saving his life.

“I did a lot of cruise ships, I did a lot of oldies shows,” during those struggles, he said, adding that he once opened for a group of Elvis impersonators.

“That’s funny to think back to it now. And I did a lot of shows where if I did a show with an oldie show, I had to actually audition,” he said. “But you know what? You keep your mouth shut and you get up there and you sing as hard and perform as hard as you can, and get the little money and go on about your business and try and pay those bills. I’m laughing about it now, but at that time, man, it was really serious.”

Moore kept recording and singing. He was a frequent performer at the Kennedy Center Honors and performed for presidents, including Obama.

Moore is survived by his wife, Joyce, daughter, Michell, and two grandchildren.