Doris Day’s Grandson Ryan Melcher Marries Brittney Giammanco in Massachusetts Wedding (Exclusive)

The newlyweds share exclusive details with PEOPLE about their wedding day, which included a tribute to the late Hollywood icon and her song, “Qué Será, Será”

Ryan Melcher, the only heir of late Hollywood legend Doris Day, found his happily ever after.

In an exclusive interview with PEOPLE, the Carmel, California based real estate agent, 40, and wife Brittney Giammanco, 31, shared details of their happy day at Lambert's Cove Inn & Resort near Vineyard Haven, Massachusetts on Sept. 30.

"It was truly a no-brainer when it came to it," Giammanco tells PEOPLE of hosting their wedding on Martha's Vineyard, where Melcher had spent time with his family as a child. "It just felt meant to be.”

While the inn, run by Bridget Sampson and her chef husband Galen Sampson, was the ideal location, their special day got off to a wet start, with Giammanco recalling that it was "pouring." So much so that "it ran past our start time," adds Melcher, who was recently named the no. 1 real estate agent in Carmel-by-the-Sea.

Once the weather cleared, Melcher tells PEOPLE the couple said, "Let’s do this." That's when "everyone went running out" where there was a beautiful flower garden on the grounds. "It's incredible," the groom says. "I've never seen anything like it, and it's kind of wild and rough on purpose. And there's one aisle to walk down, and then on either side, there's two rows of flowers."

"I was adamant about getting into that garden," Giammanco adds. "So, he's like, 'We'll wait as long as we have to. We'll get in there.' "

"People were still seating when we started walking down the aisle,” she continues, revealing that the weather didn't ruin the moment. "Then, at the end of it, it was raining. My poor dad and my brother — it was cute — they were so worried about my dress. My brother's like, 'I'll hold the train for you. You can't ruin it.’ I'm like, ‘Forget it. Who cares? Let's go.' "

"I didn't even realize it started raining while we were saying our vows," the bride recalls. "It was perfect. I was blinded by love."

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The pair walked down the aisle to the Beach Boys' "Kokomo," a song co-written by Ryan’s late father, music producer Terry Melcher. Carrying a bouquet of flowers, from florist Louise Sweet, Giammanco wore a flowing white dress, designed by Enzoani, with custom sleeves that matched the train while Melcher sported a cream-colored suit and tie.

Giammanco says her flowers featured "beautiful charm" that was given to her by her best friend. She adds that it "had a picture of his mother and my grandparents that had passed away and my cousin that had passed away."

For the welcome party, Giammanco says she had a dress of Melcher's mother, Jacqueline Carlin, “tailored to fit from the 80s.”

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"She liked white a lot," Melcher says of his mother, who died in 2021, "and there's a picture of her in [the dress] in our old house in Carmel. And she'd given it to Brittney right before she passed away."

Giammanco says there was "so much eucalyptus down the running tables with kind of that blue and white paisley looking pattern that went across the long tables. And then, the same pattern as for the napkins for the round tables." She adds, "It felt very vineyard."

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"Everybody that left called in the morning pretty much, virtually everybody, or texted, and said, ‘That was the best wedding we've ever been to,' " Melcher says, adding there were friends and family "from all different walks of life, from all periods of life" for their special day.

In addition to "Kokomo," Melcher says the Dukes Band, played a lot of Beach Boys tunes (his father produced some of their biggest hits) as well as a few favorites from his grandmother, including her signature tune, "Que Sera, Sera (Whatever Will Be, Will Be)," a song that also has special meaning to both Giammanco and Melcher.

It turns out the bride had the lyrics from the classic song which Day sang in Alfred Hitchcock’s The Man Who Knew Too Much tattooed on her arm when she was 19 years old, long before ever meeting Melcher.

Then, during one of the couple's dates — after first meeting at a dive bar in Monterey, California in 2019 — Giammanco recalls Melcher asking if she knew who originally sang the 1956 record. Melcher then told her, "My grandmother just sang it to me all the time," revealing that he was related to the late Hollywood icon.

Melcher proposed to Giammanco in a meadow yards away from their dairy farm that overlooks the valley in San Lucia on her birthday — a birthdate she also shares with his mother. "I was completely caught off guard," Giammanco says, adding, "He grabbed me and he was down on one knee."

But given all their interesting little connections — from her sharing her birthday with Melcher's mother to the song lyrics tattooed on her arm — Giammanco says, "Clearly we would've found each other in any lifetime at this point."

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