Sam Callahan, Luke Friend, Nicholas McDonald, Rough Copy and Kingsland Road were invited by popstar and X Factor alumni Olly to celebrate the release of video game FIFA 14 at his exclusive 'Football Night Out' party.
Aside from playing the game on Tuesday night (29 October), the hopefuls also got some one-on-one advice about how to go far in the competition.
Sam, who received some criticism during Saturday's live show, seemed to have struck up an Essex bromance with Olly!
He tweeted "@ollyofficial invited us boys to his lads' night out tonight! Best night ever... Can't believe I got to meet him and Robbie.. my two biggest idols! Thanks for the great advice and for giving me more confidence Olly! Love ya. #EssexBoyToEssexBoy."
The 19-year-old barman also called Robbie his "inspiration" after getting a pep talk from the star. "I met both of my idols tonight," continued Sam. "Love this man! He gave me great advice and a massive confidence boost... even a man to man pep talk!!!"
Scottish star Nicholas appeared to be overwhelmed. Posting a photo with Robbie on Instagram, he said: "Cannot believe X Factor set a night up for the lads to chill and play FIFA with Olly Murs and Robbie Williams, what an amazing night!!"
Meanwhile, Kingsland Road got an offer that not many would turn down, as Robbie asked to join their group!
Taking to Twitter, the boys confessed: "So @robbiewilliams asked to join the band last night. Told him he needs a better haircut first."
Kingsland Road later grabbed Robbie for a group photo, and we must admit, we think they could go far as a six-piece!
They later added: "Finding it hard to believe that last night just happened! Thank you @ollyofficial for making that happen #ladsnight we're literally beaming!"
Despite lots of male bonding, it was also a very competitive night, and Olly emerged victorious, walking away with the trophy. He later tweeted: "Can't believe I won my own lads FIFA night! Thanks to everyone that came!"
Watch the X Factor hopefuls singing Bruno Mars' 'Locked Out Of Heaven' in the video below: