Reigning X Factor winners Rak-Su have been forced to deny miming after their performance on Sunday's show.
Rak-Su returned to The X Factor at the weekend to sing their brand new song I Want You To Freak.
The four piece brought their usual polished dance moves to the stage, but the vocals left some people questioning if they were singing live.
However a spokesperson for the show denied the suggestion, saying in a statement: "The boys were obviously not miming. There is no truth to the story."
You can watch their performance on the show below...
Before Sunday's performance, the boys said in an announcement posted on Twitter: "We got a little announcement to make. This weekend, on Sunday, we are going to be performing our new song I Want You To Freak on The X Factor. We're coming back, we'll see you on Sunday!"
The group released their new single I Want You To Freak to download and stream earlier this month.
They tweeted: "AYYYY! We’re so gassed that we can FINALLY say our brand new single “ I Want You To Freak “ is available everywhere NOW! 🙌🏾 Big love to all our amazing fans. We hope you love it as much as we do"
It's one of some 70 songs the band - made up of Ashley Fongho, Jamaal Shurland, Mustafa Rahimtulla and Myles Stephenson - have been working on for their debut album.
“It has been an incredible experience since we won the show, but we always knew it would only be the first stage," Myles told The Sun newspaper. “It has given us an amazing platform but we need the songs to stand on their own now for us to cement our place in the business.
“We’ve been working on the new material for months and months, probably about 70 songs in total, so the time has come to start letting people hear it."
Myles admitted the group were "feeling the pressure" but vowed to work hard.
Ashley added to the tabloid: “Little Mix and One Direction both became absolutely massive from the show but it isn’t necessarily like that any more, things have changed — it takes hard work. But they gave us great advice.
“I’ve stopped searching online for reaction to everything we do, it’s not helpful. The results will speak for themselves.”
The X Factor continues Saturday and Sunday night on ITV.