Wicklow brothers Seán and Conor Price have made it through to The X Factor live shows, with mentor Simon Cowell telling them: "You don't know how good you are."
The Blessington teenagers were the last group to perform on Sunday night's hugs-filled Judges' Houses episode and had vowed to "smash expectations" as they sought to remain in the competition as part of Cowell's Groups category.
On the French Riviera, in front of Cowell and guest judge Cheryl, the siblings performed Pink's What About Us.
"That's the best I think you've sang," said Cowell after the duet.
"They're so natural and confident," added Cheryl. "Cool."
The brothers were also delighted with their performance, with Seán telling host Dermot O'Leary that they were so relaxed that it was "like singing for our mam and our dad".
As Cowell began his deliberations on whether to put the Prices through, he asked Cheryl: "What is the magic ingredient that makes them unique? Because at the moment they're buskers."
"But they're great, great value," she replied.
The following morning, the Prices met Cowell in blazing sunshine to learn their fate.
"What you two have got is great taste, enormous likeability, great voices," the show boss said. "The friendship, you know, and the relationship is amazing."
"What you have is this really charming naivety," he continued. "And you don't know how good you are.
"Which means you probably don't realise that I'm about to say... You've made it through to the live shows."
The overjoyed duo hugged each other and then hugged Cowell.
"Aw, you're a legend!" said Seán.
"No, you two are," the music mogul replied. "I could not be happier."
As they departed, Cowell said: "Amazing. How could I say 'no' to them?"
Joining Seán and Conor in the Groups category for the live shows are Rak-Su and The Cutkelvins.
In Istanbul, judge Louis Walsh had to decide on which singers to put through in the Boys category and was joined in his deliberations by guest judge Mika.
After the performances, Walsh decided to put Lloyd Macey, Sam Black and Spencer Sutherland into the next stage of the competition.
In the latest X Factor twist, the 12 acts that didn't make the cut during the Judges' Houses episodes have been given the chance to return for the live shows as wildcards.
One act from each category - Boys, Girls, Groups and Overs - will receive a wildcard with voting now open and further details available on the show's website. Voting will close at 1pm on Monday.
The X Factor continues on Saturday on TV3 and ITV at 8.20pm.