Stopping by “The Late Late Show”, Mandy Moore takes a trip down memory lane with host James Corden about her musical days and touring with ‘N Sync as their opening act.

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The “A Walk to Remember” star recalls how surreal it was touring with the Backstreet Boys and ‘N Sync. Moore explains, “Well, I was 15 when I started singing. And I went from watching them on MTV as I would get ready for school in the morning to six months later I was on the road with ‘N Sync.”

For Moore, her interaction with Justin Timberlake feels like yesterday: “I didn’t see much of the guys because I was just the opening act, nobody cared about me, but Justin Timberlake was there and there was a conversation about feet or foot size. And I stroll up at 15, like freaking out that Justin Timberlake was there, and he says, ‘”You have big feet for a girl,'” Moore recalls.

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Sixteen years later this moment has really stuck with her, but admits Timberlake probably has no recollection of this, “I’m sure he doesn’t remember this at all, but I was so impressionable, and I thought the world of him and he was on a pedestal.”

Moore reveals how big her feet are: “Size 10, but I’m 5-foot-10 and I was going through puberty at the time. It was embarrassing!”