The pair, who've dated on and off for the past year, tied the knot in a small ceremony on Tuesday in Savannah, Ga., the actress-singer's publicist confirms to E! News.
While Moore, 24, had weddings with Shane West and John Krasinski in A Walk to Remember and License to Wed, respectively, this is the first real-life marriage for both her and Adams, 34.
Just last week, Moore briefly spoke to E! News about her upcoming nuptials without dropping nary a hint that they were just around the corner.
"I am not the typical girl, so that's not something that I'm even thinking about at this point," Moore said of her dream wedding dress. "I never really had thought about it, actually. When planning one of the most important days of your life, I think you should incorporate your own style and individuality. I'm sure that will probably factor in as well for me."
Presumably, quick and quiet are aspects of the beauty's personal style.
—Additional reporting by Danielle Datu