X Factor 2012 judge Louis Walsh reckons Union J could be as big as JLS.
The boy group are Louis' only remaining act left in the competition, but the Irish musi mogul has predicted big things for the boys.
Speaking on the Xtra Factor, Louis said they have the same work ethic since JLS, who finished as runners up on the show back in 2008.
Louis said: “Union J have worked really hard and I have never worked with an act since JLS that have worked so hard in the competition.”
He added to Xtra Factor's hosts Caroline Flack and Olly Murs at the weekend: “They work hard, they do everything right and I suppose District 3 were probably taking some votes as well.”
The boys this week gushed about Louis, describing him as the "best mentor" for them.
They said: “Louis is the best mentor we could have asked for – he knows his boybands.”
Union J – made up of Jaymi Hensley, Josh Cuthbert, George Shelley and Jamie “JJ” Hamblett – explained: “If we’re not happy about something, he’ll listen to us.
“But most usually there is a mutual decision on things anyway. He’s become like the fifth member of Union J”.
This weekend will see the acts singing two songs each, and the group's George Shelley admitted the boys were nervous after being in the bottom two twice before.
He tweeted: “Rehearsals are going SOOO smoothly today! 🙂 Really nervous about singing two songs this weekend though… Who’s excited? George X”
The X Factor 2012 continues this Saturday on ITV1 and ITV1HD, with the final five acts sing two tracks each with Abba and Motown themes.
Sunday's results show will see one more act get the axe, and there will be performances from Rhianna, Tulisa and Bruno Mars.