X Factor boss Simon Cowell has backed the show’s winners Rak-Su to be as big as superstars One Direction.
The music mogul, 58, says the band share the same “certain class” as Harry Styles and co.
One Direction, who came third in the 2010 series of the show, have gone on to sell more than 70million records.
Rak-Su are childhood pals Myles Stephenson, Jamal Shurland, Mustafa Rahimtulla and Ashley Fongho, all 25 and 26 and from Watford, Herts.
And Simon said they are destined for great things. He said: “There’s an awful lot of artists in entertainment who appear nice in front of the cameras but behind them they’re monsters.
“Not these guys. These guys have that same thing as 1D, a certain class.
“The group are so important to the show for that reason.
“When you have people like these guys who have ambition it’s great and there’s this wonderful afterglow.”
Before last night’s final, bookies made Rak-Su the favourites to beat Lancashire-born singer Grace Davies, 20.
The “man band” have been a hit with fans all the way through the series — and say they have already been inundated with weird requests.
Beatboxer Mustafa, 26, said: “Someone asked if they could sniff our socks.
“I don’t know how we were gonna make this happen but believe it or not we didn’t really explore that option.”
Both Rak-Su and Grace decided to put their best foot forward for the final showdown, after beating out Kevin Davy White in the first part of the final on Saturday night.
However, after performing two of their own songs, Rak-Su were declared the winner of the series.
The Watford-based four-piece – comprised of Myles, Ashley, Jamaal and Mustafa – were left jumping for joy as they were announced in the top spot.
They are the first band to take the win since Little Mix in 2011, and only the second band to win the show overall in its fourteen series run.
As part of their win, they will release their own original song, Dimelo, which they performed as a duet on Saturday night with Wyclef Jean and Naughty Boy.
Performing the song for the second time after they were announced the winners, they were joined by their former finalists, who ran on stage to hug the group for making it through to the end.
This is the first time a champion has released their winner’s single as a duet.
All proceeds from the song will be donated to children’s charities, Together for Short Lives and Shooting Star Chase.
Across the two-hour long finale, the two finalists were sandwiched between performances by megastars including Little Mix and Pink.
Kicking off the show, Little Mix, who won the show back in 2011, performed Power and Reggaeton Lento with Spanish group, CNCO.
Donning power suits, the girls – who are also the only group to win the show ever- mounted the judges panel for their high energy performance, and kicked the show off with a bang.