Neil Sedaka gave the world hit after hit, helped shape pop music for generations, and built a career most artists could only dream of. But behind the chart success, the legendary singer-songwriter reportedly carried one painful disappointment that never truly left him.

Sources say the Oh! Carol icon, who died February 27 at a Los Angeles hospital at 86, was quietly haunted by one glaring omission from his remarkable career: he was never inducted into the Rock & Roll Hall of Fame.

While Sedaka rarely made a public fuss about it, insiders claim the snub hit far harder than he ever let on. After all, this was a man who wrote or co-wrote more than 700 songs and racked up more than 20 Top 40 hits across a career that stretched for decades. His music didn’t just make him a star. It helped define an era.

According to one insider, the exclusion deeply stung.

“Neil would never say it out loud, but it absolutely bothered him,” the source said. “He saw artists with less impact and fewer hits get honored while he stayed on the outside looking in. He felt robbed.”

It is not hard to see why the omission would have cut so deeply. Sedaka was behind a stunning catalog of classics, including his own signature hits like Calendar Girl and Breaking Up Is Hard to Do. He also helped create songs that became huge for other stars, including Stupid Cupid for Connie Francis and Love Will Keep Us Together for Captain & Tennille.

Even with that kind of legacy, Sedaka’s career took a sharp turn when the British Invasion exploded in the 1960s. As the Beatles and other new acts took over the charts, his brand of polished pop suddenly fell out of fashion.

He spoke openly over the years about how devastating that moment was.

“When the Beatles arrived in America, I retired,” Sedaka once said during live performances, reflecting on how dramatically the music landscape changed around him.

He later admitted he felt the shift “with a vengeance,” realizing the playful style that once made him king of the charts was no longer what the industry wanted.

Still, Sedaka fought his way back. In the 1970s, Elton John helped revive his career by signing him to Rocket Record label, giving the beloved star a second wave of success and reintroducing him to a new generation of fans.

But according to sources, even that comeback could not fully erase the sting of never receiving what he saw as one of music’s highest honors.

“I’m not crying for Neil Sedaka,” the insider said, “but he really believed he earned that spot in the Hall of Fame. And honestly, with a résumé like his, who could argue?”

For all the applause, platinum hits, and lasting influence he left behind, it seems one painful slight followed Sedaka until the very end — a bitter reminder that even legends do not always get the recognition they believe they deserve.