Colin Jost has been a fixture on our screens for over a decade - but an unearthed clip showing his first ever TV appearance has fans in awe over his 'glow up.'
Jost has hosted Saturday Night Live's Weekend Update since 2014, but he made his screen debut as a contestant on The Weakest Link in the early 2000s.
The 42-year-old was a guest on the Tonight Show with Jimmy Fallon when the host showed the clip to a delighted audience, featuring a baby-faced Jost with a boy-band style haircut and a Harvard sweatshirt.
'I was extremely nervous,' he admitted the Fallon on the show.
'It was in Los Angeles. I'd never been to Los Angeles before. I'd never been on any sort of show, and I was there. And I wouldn't say that I did great on the show,' he added.
The short clip shows a young Jost incorrectly answering a question on the game show, which was having a college episode special.
Jost, who is now married to actress Scarlett Johansson, was asked what season it is in the Northern Hemisphere in August.
He guessed Fall when the answer was Summer - much to the delight of Fallon who laughed hysterically.
Colin Jost has hosted Saturday Night Live 's Weekend Update since 2014, but he made his silver screen debut as a contestant on The Weakest Link in in the early 2000s
Jost admitted he was the real 'weakest link' of show - despite winning $2,500 - but many users were more focused on his apparent transformation in more recent years.
'Glow up of the century,' one TikTok user declared.
'Dang. Colin Jost had a glow up,' agreed another.
'Colin is so hot,' another fan posted online.
Jost wore black pants and blazer, with a white scoop necked shirt underneath, along with two chains around his neck for his latest TV appearance - which was a far cry from his younger look.
During the show, he also opened up about wife Scarlett's stunned reaction to a nasty joke about her private parts on Saturday Night Live during his Monday night appearance on the Tonight Show.
Jost and his co-host, Michael Che, had been taking part in a Joke Swap, where they read jokes they have never seen before that the other wrote, to get each other to laugh.
During the show's Christmas episode on December 21, Jost read a joked Che wrote about Costco removing their roast beef sandwich from their menu that Jost read on air which stunned both Jost and Johansson - who was in the studio.
The 42-year-old was a guest on the Tonight Show with Jimmy Fallon when the host showed the clip to a delighted audience, featuring a baby-faced Jost with a boy-band style haircut and a Harvard sweatshirt
Jost admitted he was the real 'weakest link' of show - despite winning $2,500 - but many users were more focused on his apparent transformation in more recent years
'I'm in trouble I think with a lot of people,' Jost said as the audience laughed, before he added, 'Scarlett was genuinely so shocked.' The couple are seen in July
'I've been eating roast beef every night since my wife had the kid,' Jost said, as they cut to a stunned Scarlett backstage who said, 'Oh my God.'
'I'm in trouble I think with a lot of people,' he said as the audience laughed, before he added, 'Scarlett was genuinely so shocked.'
He added he was 'obviously surprised' since he didn't see the joke beforehand, but revealed show staffers gave Scarlett a bit of a heads up.
'But they gave her a heads up. They were like, "Hey, would you be okay if Michael made a a little, like, kind of vagina joke at some point?"' Jost revealed.
'She was like, "Sure, you know, whatever, I'm open to it,"' Jost said, adding he 'didn't know where it was going, and then the graphic came up for Arby's.'
'And so, Scarlett is backstage like, "Oh, my god! That's what it is?"' Jost said, as Fallon said it was a, 'legitimate live moment.'
The host added, 'You weren't acting at all,' as Jost admitted, 'I was not. I can't act that well.'