Jordan Strauss / WireImage 1 / 20
Jordan Strauss / WireImage 1 / 20

Nikki Reed and Paul McDonald said "I do" Sunday at a private ranch in Malibu, Calif., on Sunday in front of 100 guests, Reed's rep confirms to Us Weekly exclusively.

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"We couldn't be happier!" the 23-year-old "Twilight" star and "American Idol" Season 10 contestant, 27, tell Us. "[We were] surrounded by our family and friends. We're so glad this day has come!"

Reed and McDonald confirmed their engagement to Us in June after just two months of dating.

The couple first met at the premiere of "Little Red Riding Hood" in March. "You're amazing," she told him. "I'm blushing! I should go."

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McDonald clearly felt the same about his future wife. A month later, the singer moved in to Reed's L.A. home. He admitted to Us that his instant connection with the actress was "weird," especially since he isn't exactly a Twi-hard.

"I haven't ever actually watched any of her movies. I don't know too much of her career at all, but the person she is is super-cool," he said.

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But even if he's not first in line for "The Twilight Saga: Breaking Dawn Part 1," McDonald feels as if he landed the jackpot with Reed. "She's amazing. She's the perfect girl," he gushed to MTV News. "We fit each other; when you know, you know, and she's the one."