This is so adorable! I will never understand how people can say this is wrong. Two people are raising children with lots of love and that is all that matters. Food for thought for everyone saying that a child needs a mother and a father - what about single moms/dads? Should their incredible effort be labeled as wrong, too? Exactly. I really cannot understand how anyone can be so hateful and be against a loving family, not even after being physically abused for being gay so many times. Love is incredible and I wish for everyone to love, and be loved. That is the greatest gift on earth.

The end had me crying of laughter. "You're no better than Harper" ahahahaha

It's cool to see two of the coolest people ever come together to make a glorious video. Thanks, Ellen!

He's the best person ever 😊

That knock knock mistake was the best thing I've ever seen on Ellen because it was a genuine mistake but still wound up funny as hell 😂😂

Scrolling down looking for these hate comments, but all I can see is comments of people giving out about the hate comments.

That was awesome! I don't understand all the hate and negativity! EWW!

she's so disappointed with herself, hahahaha. it's ok ellen we still love you!

His kids are little works of perfection!!

Patricks kids are soo cute! Love the entire family

you accept Ellen being gay, but hate Neil for the same reason, pick a side guys

"what happened to me?" in ellen's mind translates to "i dare call myself a comedian" LOL. Love you!!!

Neil Patrick Harris reminds me of an older Thomas Brodie-Sangster.

Even though Ellen's joke was wrong, it still made me laugh! LOL!

this man never ages!!!

I'm not gay, but I'd go gay for Niel Patrick Harris, he has such good style and charm, he can act, sing, dance, his body has been looking superb since forever, and when he smiles his eyes just sparkle:)

Its nice to see even when people mess up even if its on national television that they can still laugh at themselves!

Ahaha! I love these two role models. It gives me so much hope that their are these such wonderful people to teach children laughter and true happiness.

Ugh, his whole family is just SO precious

I just got into a fight with my best friend and was feeling really down, this put the biggest smile on my face. Love you Ellen! and Neil!

He's mostly Barney

they should co-host the show

His kids are literally the cutest

Love seeing my favorite person on Ellen! I've met Neil 3 times and he is the nicest, funniest, and down to earth guy. (His eyes are also really blue in person (; )

That was the best😄 I was totally just gonna go along with her joke cuz it'd still be funny 💜

even professional comedians have those days

A comedian with a talk show, ladies and gentlemen. Can't even tell a knock-knock joke. lmao

NEIL PATRICK HARRIS

His laugh is so ❤❤❤❤

He deserves all of the happiness

They have an ADORABLE family 🤗💕

Awww so cute!

That was adorable! I love that she told the joke wrong-so cute.

I LOVE NEIL PATRICK HARRIS HIS KIDS ARE SO CUTE!

Oh I love these two! You can't fail when you put Neil and Ellen together in an interview! Also, did Ellens attempt to tell that knock-knock joke remind anyone else of that one Studio 60 episode where Herriet can't tell a joke? They make the same mistake with the same joke :)

Ahahaha when Ellen got the joke wrong :P Brilliant laughs :)

literally my two favorite people

Neil is such an awesome person. And an awesome actor!

Neil and his happy family, especially the two kids(neil and david are each genetically related to one, how lucky!) are the reason I believe good things come to good people

They're goals

I love Neil :) and ellen! Drives me nuts when people only think of Barney stinson for Neil though. He had tons of other amazing roles too!

Those kids are freaking adorable! :)

I love this guy so much.

You can watch them all day !

awwww ellen got embarrassed that was so adorable!!!

it turns out that jokes are even funnier when you say them wrong hahaha

Ellen’s all like CAN YOU BELIEVE I THAT I AM A STAND UP COMEDIAN 😂😂😂 love her

Hahahahaha those knock knock jockes hahahaha... Neill's kids are soo cute

he made ellen blush!

ellen gotta get her "knock knock joke" game up. "🎶Nicole never bothered me anyway🎶" 😂😂😂😂😂😂😂😂😂😂

fave💕💕

Two loveable people 😍😍

This is so cute!

I absolutely love you Ellen!

LOL! Nicole never bothered me anyway! 😂😂

My son Gideon (and his twin, Persephony) just turned 6 yesterday. *tear* Crazy how time flies..

Ellen, one of the most renowned and popular comedians of all time, cannot tell a knock knock joke. Who knew?

Legendary . :D

I love watching ellen i wish it aired on spain

Gideon's knock knock joke is clever.

it's like ellen's looking at a mirror

I'M LAUGHING SO HARD

Biggggg fann

They're such babes. Aw.

Wow hes from the smurfs and hes real!

Love them

LOVE YOU!!!!!!!!!!!!!

So cute

I love knock knock jokes!

Love em

He is so classy dayyum son.

His babies are so cuteeeeeeeeeeeeeeeeeee!

I've ruined the orange knock-knock joke in the exact same way, too.

Hahahaha OMG I am dying from laughter.

I read 'Neil Patrick Harris on Growing His Children'

The only celebrity family I ever want to know about. They're so fucking lovely.

Neil Patrick Harris and and David Burtka are so cute together!! I'M DEAD. Their kids are so adorable too, I want them to adopt a shy boy and name him Oliver, Haha XD. But srsly though, It's amazing, Neil and David are amazing together.... They seem very happy and they are amazing parents!

I wondered whose last name did Neil and his husband David Burtka's twins get, because kids get the last name of their father, and in this case there are two fathers. Turns out, they got both their last names. Their twins' full names, according to Google, are Harper Grace Burtka-Harris and Gideon Scott Burtka-Harris.

Ellen I love you so much!! 😘😘❤️

Wait, NPH's kid is named Harper too? What's with naming baby girls Harper these days? I reckon they'll have to start calling kids by their last names at kindergartens.

My sister had a huge crush on him

How is it even still discussed wether kids are supposed to be raised by a gay couple or not? I mean, if they are loved and happy, who cares if it is a mom and a dad or two moms or two dads? I am sure that there are a lot of children who would be grateful to have two loving parents and wouldn't care if they had the same gender.

And of course NPH!!! ❤️

It's Barney from how I met your mother😆

I watch too much 'How I Met Your Mother'!!!! This iz weirdddddddddd! 😂😂😂😂😂

I wonder which of Barney Stinson's Nursery Rhymes he taught his kids...

What are these #repeatafterme videos ?

I am pretty sure Harper is NPH's and Gideon is David's. They are the cutest family ever.

She's been too into Dory's character... c:

Wow He is nothing like Barney. Love Neil.

You're no better than Harper :D

does neil know he shaped my personality

I don't get Ellen's joke. Can anyone tell me, please?

Ellen, you're a comedian! That's like barely level one comedy. Get it together! I'm just kidding. I do stuff like that way too often.

You now I will tall you that in person as well

Ellen is hilarious even without trying hahaha.

so now Neil my favourite movie actor you do no ellen so Sophia grace

Why does no one invite Josh Randor? He is my favorite

Gideon from the flash if u know what i mean lol :)... .

Dear Ellen,sorry I couldn't email it to you but my family has been needing help.We wanted to go to America and needing a new house.However we couldnt afford the right money we need.Please help us😟Leila Datuin-Uk Huntingdon 4bBrampton road