The blushing bride wore a stunning silk gown -- which featured a plunging neckline and beaded embroidery on the shoulders -- custom-designed by her close pal and Project Runway alum, Michael Costello. Stylists Eduardo Ponce and Oscar Pallares Gomez brushed her brunette tresses into a beautiful updo topped with a beaded white headpiece, while makeup artist Lyndsay Zavitz gave Toscano's elegant look the perfect final touches.
"I've dreamed of this magical day since I was 4-years-old, and I hoped to find my King," Toscano gushed to ET just moments before saying "I do."
"Today, all of my childhood dreams come true," she continued. "I am marrying the absolute love of my life in front of my closest family and friends. I couldn't be happier!"
The New York City native and her husband kicked off their reception by waltzing around to John Legend's "All Of Me" as their first dance.
"Being a singer, lyrics are super important to me, and the lyrics of that song describe us and our relationship perfectly," she dished.
Toscano said she had always dreamed of planning her wedding day -- "I think every little girl does!" -- but she "dreamed about it more often" the moment she laid eyes on Smith.
"Jimmy and I both had the same vision for our wedding, which made planning a lot easier," she explained. "Luckily, we had an amazing wedding planner [Phyllis Inserillo] and visual director who both know Jimmy and I personally. They handled a lot for us while we were in Los Angeles, but Jimmy and I were still extremely involved."
"Making sure that all of our family and friends felt included was our No. 1 priority," she continued. "And making sure I fit in my wedding dress was pretty important as well."
That's why when it came to choosing a maid of honor, she couldn't pick just one!
"I have 3 Matrons of Honor -- my sister, Kim, my best friend, Cassie, and my godmother, Rose," Toscano told ET. "They have been my greatest mentors in my life and I couldn't imagine this day without these amazing women by my side."
"Our Best Man is Jimmy's cousin David," she added. "David is also an incredible mentor to Jimmy and I. He is like the brother we never had. We are very lucky to have these special people stand beside us."
Toscano also confirmed that no alumni from American Idol were in attendance. "As we decided to have the wedding in New York, it was a bit out of the way for everyone," she explained.
Still, that didn't stop the guests from having a joyous time at the luxurious event. There was Roxx Vodka served at the celebration, a dessert room by Divine Party Display & Sweet Serendipity, a stunning floral photo wall custom designed by Cary Decor, a sweetheart table designed by Floral Couture and table settings from LaSar Linens. Meanwhile, the couple enjoyed a gorgeous cake made by Lilabbys events.