Cher has sold over 100 million records and won a trove of awards, including a Grammy, an Emmy and an Oscar, across her six-decade career. But there's one mistake the 77-year-old singer made earlier in her career that still haunts her — and cost her "a lot of money," she shared in a new interview. While that line made it to the final recorded version of "Believe," Cher's name doesn't appear in the songwriting credits. "Believe," which was released in 1998, is one of Cher's best-selling records to date. Warner Records, the label that released "Believe," did not immediately respond to CNBC Make It's request for comment.

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Persons: Cher, Vernon Kay, Kay, I've, Rick Carnes, Carnes, Brian Higgins, Stuart McLennan, Paul Barry, Steven Torch, Matthew Gray, Timothy Powell Organizations: BBC, Recording Academy, Songwriters Guild of America, Warner Records, CNBC