Mandy Moore is a grown-up. The lanky girl with long blond hair singing coyly while doing eight-count steps in a parking lot about how she’s addicted to her skateboarder crush like  “Candy” is gone. She’s been replaced with a gal in skinny jeans and a cropped tuxedo jacket who likes having her tousled brunette mane in her face when she sings.

On Thursday, Moore performed a handful of folksy, retro-pop songs off her new album -- including “Pocket Philosopher” and “I Could Break Your Heart Any Day of the Week" -- before a sold-out crowd at The Grammy Museum in downtown Los Angeles.

But actually, the name's Amanda Leigh … just don’t call her that. Though her given name serves as the title of her sixth studio album -- released in late May as a follow-up to 2007’s “Wild Hope” -- it wasn’t an attempt to update her identity.

“Amanda Leigh is my given name, my legal name,” said the 25-year-old singer in a pre-performance interview with Robert Santelli, executive director of the museum. “But other than that, I really have no connection to it. I’ve been Mandy my entire life. It wasn’t one of those sort of really heady artistic decisions like, ‘I want to be taken seriously. I want this music to reflect the real me.’ I understand when artists do that, of course; this wasn’t the case. It was a bit more flippant, actually, than that. Mike Viola [co-writer and producer of the album] called me Amanda Leigh in the studio a lot and, for some reason, it stuck in my head and it was really synonymous with the time.”