The On The Floor hitmaker felt tormented for years as she doubted her musical talent despite selling 70 million records, and it has now emerged her ex-husband helped her overcome her insecurities.
Lopez tells Cosmopolitan magazine, "The biggest insecurity I had was my singing, even though I had sold 70 million records. Marc helped me get over it. He kept telling me, 'You're the only one holding yourself back'. Gradually I realised this is not a fluke. I work my a** off. And I know what I'm doing."