Irish X Factor contestant Brendan Murray wowed on Saturday night's live show, with Robbie Williams praising his performance as "amazing".

Last week Brendan found himself in the bottom two against the LMA Choir, with each act receiving two votes from the judges, bringing the decision to deadlock.

Brendan was saved to sing another day as he earned more votes from the public.

He vowed to "bounce back" and that is just what he did on Saturday night's show.

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Before he performed 5 Seconds of Summer's Youngblood, Brendan said, "This performance is going to be a bit different than the other two weeks.

"You’re going to see a more high-energy me and I’m coming out fighting and I’m not holding anything back."

The performance went down well with the audience, and the judges, with Robbie saying, "It seems like its babysteps in you finding your place as a performer and you’re doing an excellent job.

"You’re gonna need tricks like that in your arsenal if you're to go on from here and entertain arenas because you can’t just stand there with a pretty face.

"You did a great job, you’re on your way; you were amazing."

Simon Cowell wasn't quite as complimentary, suggesting that his song choice could have been a problem.

"This one was still a little bit lightweight," Simon said of Brendan's performance. "I'm not sure it's the right song actually."

Former One Direction singer Louis Tomlinson, who is Brendan's mentor, defended him saying, "You’ve got to give him credit for coming out of his comfort zone."

Louis added that he is "really, really proud" of him.

The show suffered technical difficulties with sound while being broadcast on Saturday night, with the public vote cancelled as a result.

The sound issues distorted contestants Danny Tetley and Anthony Russell's performances.

At the end of the programme, a message saying Saturday's vote had been cancelled flashed on screens.

"Due to a technical issue, tonight's vote has been cancelled. It will open in tomorrow night's show," it read.

An ITV announcer said after the show aired: "We're very sorry for the problems with the sound on the X Factor tonight."

The vote will open on Sunday night's show on Virgin Media One and ITV at 8.30pm.