You remember Mandisa . . . she’s the one with the winning smile and powerhouse vocals who sang her way into the final rounds of “American Idol’s” fifth season – and into America’s hearts. It’s not surprising Mandisa made such an impression; music has been the backbone of her life. “I don’t ever remember not singing,” she says. After years performing in church and school choirs, she earned a degree in vocal performance from Fisk University before working as a session and backup singer. Then came “Idol” and national recognition – not all of it positive. “My faith certainly went through some tests of fire,” she shares, “but it’s stronger because of that and it’s also made me want to know more about it and how to articulate it. More than just a career, I really want to have a ministry that has an impact on people. I just want to follow through with what is in my heart. I never want to look back and wonder, ‘What would have happened if….’”