They now take home the $1 million prize and get the opportunity to headline a show at Luxor Las Vegas.
The Lebanese dance troupe, who dazzled judges with their hypnotic performances, wowed once again on stage alongside fellow dancer Kristy Sellars, who came in second on season 17.
Here are some of the highlights from the emotional two-hour finale.
Simon Cowell's roast
Comedian Mike E Winfield hosted the roast of Simon Cowell, with Jeff Ross, Don McMillan and Lace Larrabee who poked fun at the judge.
McMillan began the roast with a PowerPoint presentation of Cowell's dislikes, which included one per cent Parmesan cheese and shaving.
He ended his skit, saying: "If someone told me 20 years ago I would be on national TV roasting Simon Cowell, I would have said 'I can't believe Simon Cowell's still on television in 2022.'"
Larrabee came on to say, "I do love Simon's style, I like to call it mid-life crisis chic".
Ross dubbed him "Simon Scowl" and then introduced "Simon's biggest fan", which ended up being the AI version of Cowell by contestant Metaphysic, who went on to shower compliments on himself.
A spooky prank
Heidi Klum and host Terry Crews terrified Cowell, Sofia Vergara and Howie Mandel with a Hollywood Horror Nights park.
The trio wandered through a "haunted" hotel, while actors dressed in gory outfits (think missing eyes and lots of fake blood) jumped out at them, making the judges scream.
"Get away from us," Cowell shouted.
"I can't do this anymore," Vergara piped up.
Crews then popped out in disguise, before pulling off his mask and shouting, "I gotcha", to which Cowell replied, "I hate you, I actually hate you".
Actor Henry Winkler, a self-confessed America's Got Talent fan, introduced three magicians to the stage for a mind-bending performance.
Shin Lim, the winner of season 13, took the stage with Yu Hojin and Nicolas Ribs, both contestants on the latest season.
Lim played the piano, while Hojin wowed the crowd with some sleight of hand card tricks, including putting a whole deck in order of suit with a quick flick of the wrist. He also erased the faces of the cards to reveal the AGT logo in their place.
Meanwhile, Ribs displayed his unique brand of magic by working with a projection and making objects appear in reality, from coins to cards.
Lim came in at the end to turn an entire deck into aces.
With the use of Proto's hologram technology, friends and family on the finalists were beamed into the studio to give participants' a last word of encouragement.
This included magician Hojin's parents from South Korea, who said, "We're in Korea rooting for you", as well as saxophone player Avery Dixon's brother, who said ,"I knew you were going to make it".
Country music trio Chapel Hart got an extra-special surprise, when American country music singer Tanya Tucker appeared, saying: "Surprise. It's Tanya. Chapel Hart, y'all are so great and congratulations on everything you do. America's Got Talent, write about that."
Terry Crews performs with Ukrainian LED troupe
Crews was the centre of attention at the beginning of the show when he hit the stage with Light Balance, a Ukrainian LED dance troupe, as they performed to Justin Timberlake's Can't Stop the Feeling!.
The group mesmerised the crowd with their in-sync performance lit up in neon, to a backdrop of laser beams.
At the end, the lights came on and Crews took off his hat to reveal that he'd been part of the group all along.
"This reminds me of my bachelor party," Crews joked. "You can catch these guys in our AGT live show at Luxor Las Vegas!"
The moment Mayyas won
The biggest moment of the night was, naturally, when the winners were revealed.
In true America's Got Talent fashion, the suspense was heightened as Crews took a long pause before revealing the winner. A nervous Sellars stood on stage, next to the whole Mayyas troupe, many of whom were shaking or crying already.
As Crews called out their name, they all started jumping and crying in their golden outfits, as matching golden confetti rained down.
Vergara, who gave Mayyas her golden buzzer in the auditions phase, jumped up and ran on stage to hug the ladies.