After mopping up at the MTV Video Music Awards last night, the 1D boys decided to wind down with none other than Biebs at his plush LA home.
The British boy band pipped Bieber to the post for Best Pop Video with their debut single What Makes You Beautiful and also scooped gongs for Best New Artist and Most Share-Worthy Video.
After the ceremony Biebs told fans on Twitter that their late night celebrations were well underway.
He tweeted, 'Guys night in full effect' after sharing a snap of the trio posing together.
He captioned the image: 'Chillin with the homies.'
Niall later retweeted the snap, adding: 'Hell yeeaaaahhh.'
Another black and white photograph showed the boys looking a little unsure of their cookery skills as they rustled up a quick snack.
Bieber tweeted: 'At my house cookin some noodles with @NiallOfficial.'
Continuing to update his fans with their movements, Biebs also tweeted a picture of Niall and himself mastering their posing skills with a friend.
He captioned the photo: 'The look away.'
Before celebrating the 1D's nods with the American superstar, Niall thanked fans for their support, tweeting: 'Guys what the hell! You are incredible, 3 vmas ! We love u all soo much! All 3 of them are for u! Thank you!'
Justin - who left the star-studded bash empty handed - also commended the One Direction's efforts, tweeting: '#goodguysalwayswin'
There has long been talk of a collaboration between the boys after the Boyfriend singer told We Love Pop magazine: 'The One Direction guys are great. We have a lot of fun whenever we hang out.'
The boys have previously been spotted in the studio together and Bieber has also hinted at a collaboration on their next album.
'It's gonna be great,' he added.
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