Sean and Conor Price will be singing their hearts out on The X Factor tonight, as they battle to say in the show with the competition heating up.
The teenagers have betrayed few signs of nerves as they continue on their path to stardom.
Their supporters have been praying they will survive another week's elimination test.
The theme of this weekend's show is "crazy in love", with all remaining contestants performing love songs.
Just 10 acts remain in Simon Cowell's show, with the boys busy rehearsing all week as they gear up to perform the hit Issues by Julia Michaels on the stage.
They have once again been calling on their supporters to get behind them and vote so they can stay in the programme for another week.
Sean (18) and Conor (15), who started off busking on Grafton Street, have been immersed in rehearsals all week in order to ensure their vocals are tip-top for tonight's show.
However, they managed to take time off for a bit of relaxation by visiting top London attraction Winter Wonderland, along with fellow contestants Rak-Su Music, saying they had a "great time".
Last week saw the singing siblings receive a standing ovation from the panel of judges for their rendition of George Michael's hit Freedom.
They have consistently received positive comments from the judges, with Nicole Scherzinger saying Conor was like an Irish rock version of Justin Bieber.
"You boys are just a breath of fresh air, great job," she said.
Louis Walsh also praised their talents.
"What I love about you guys is it's real. There's no dancers. There's no great backing track. It's just about you and your voices," he said.
"You've got an amazing voice, Conor. I want everyone to vote for you now."
However, this weekend there's a double elimination looming - meaning every vote will count when it comes to staying in the cut-throat competition.
The grand finale of the contest will take place next month.