John Mulaney talks about his secret marriage with Olivia Munn for the FIRST TIME - and sweetly brings his new mother-in-law to Late Night interview appearance

Just a month after his secret wedding with Olivia Munn, John Mulaney confirmed the nuptials on Late Night with Seth Meyers.

The 41-year-old Chicago native had been married to Annamarie Tendler for eight years when their relationship quickly ended and Mulaney started seeing Munn, 44, in 2021, with the couple welcoming their son Malcolm Hiệp Mulaney in November 2021.

The couple took fans by surprise in July when they announced they had secretly tied the knot in New York City.

The comedian's old friend Meyers mentioned the wedding at the start of the interview, which Mulaney said, 'Yes. I did. I got married. Thanks a lot.'

He added, 'It's the best. It's the best. And my mom is here as well,' though when they cut to his 'mom,' it was actually his mother-in-law, Kim, who he calls, 'Miss Kim.'

Kim immigrated to America from Vietnam in 1975 and settled in Oklahoma City, where she met Olivia's father, Winston. 

When Meyers points out that is Munn's mother, Mulaney said, 'Oh, yeah. But like you said, we got married, so that's -- I call her I'll say in-law.'

Meyers asked how he thinks he fared with his in-laws, Mulaney said, 'It's the greatest single time in my life.'

'I've been in a lot of interesting situations. I've never -- marrying into a large Vietnamese family is one of the most fun things I've ever done,' he said.

When pressed for more details about marrying into this family, Mulaney said, 'If I did a perfectly accurate impersonation of my mother-in-law, it would be a career ender. So, we all, kind of, know that.'

He added how happy he was that Miss Kim came with him, joking, 'One of them will come with you anywhere. [ Light laughter ] And they call me John Mulaney, full name. A little wrong, full name all the time. "Olivia is here with John Mulaney." Yeah. And they're the greatest.'

The comedian added that his family is, 'uptight about a lot' of different things like, 'Money, health, anything -- almost everything is taboo.'

'The Luong family, they talk about anything immediately upon meeting you. Like, how much money you have? Why you so skinny?'

He added a story about Miss Kim's brother Foo, an engineer in Indianapolis, who came to visit him and Olivia in Chicago. 

'And he came, midnight, you know how people arrive? And we were waiting up for Foo to arrive. And he comes in. All of his luggage is in a green garbage bag. And he walks up to me and he goes, "What state is your residency?" Immediately. First question,' Mulaney says.

When asked if this was a 'whole new world' for him, he added, 'It's the most new world. And also, they're Vietnamese, but they're Oklahoma Vietnamese, which is an extremely specific group,' adding that Miss Kim was just under 20 when she came to the United States and some of the siblings were, 'almost 12.'

'So, they grew up more in So, they have Vietnamese and Oklahoma accents. So, like, I'll do it. But... that's because it's really -- it needs to be done and also max, there's like, seven people in the world who could be offended by this accent,' he said, before demonstrating he accent.