Don't tell Jessica! Justin Timberlake 'marries' TODAY host Matt Lauer in Las Vegas after Hangover-style night out

What happens in Vegas, stays in Vegas.

Unless it's all entirely made up to promote Justin 'I don't laugh at the homeless' Timberlake's new movie like this skit cooked up by JT and TODAY host Matt Lauer.

The sketch began with the pair heading to the hotel elevator as Matt lampooned the 32-year-old singer and actor's outfit after a montage of the two preparing for their big night.

The groom and groom: Matt Lauer 'married' Justin Timberlake in Vegas in a sketch for the TODAY show

'You’re not gonna wear that, right?' Matt said.

'The man purse, you’re not wearing that. You’re just screwing with me.'

JT replied: 'This is where I keep all my things. I get a lot of compliments on this. Besides, it’s not a man purse, it’s a satchel. Indiana Jones has one.'

'Yeah, so does Al Roker,' Matt said of the Today Show's resident weatherman. 

Giggles: The two men obviously enjoyed making this Hangover style sketch

Justin Timberlake 'marries' Today host Matt Lauer in Las Vegas

'Are you actually wearing that?' Lauer questioned Justin's choice of man bag for a night out

Night on the town: The boys start off soberly but mayhem is on the way

'And here's what's happening in your neck of the woods!' Timberlake then quipped, aping the meteorological institution.

Then there was a flashforward to later and an Elvis impersonator marrying Matt and Justin at the Classico Chapel.

'I can't believe we did this,' a Matt says while holding flowers at the altar.

Back on the show, Matt said: 'I don’t remember any of it,' he said, 'but I lost a tooth.''

Serious chat time: Lauer sat down with JT to discuss his new movie Runner, Runner

Serious now: Justin defended poor beleaguered Miley Cyrus

Justin did sit down and have a sensible interview with Lauer, and he distinguished himself from the celebrity sheep chiming in to criticise Miley Cyrus by sticking up for the 20-year-old.

Well, sort of.

He told Lauer: 'I think she's really smart, and I think she's really talented.

He added: 'I'm not saying I agree with the presentation, but I also feel like every 10 to 15 years we pick somebody that this is what we're going to do with them, is we're going to make them the model of who we want our daughters to be or not be.'