Hello everyone. >> [singing] [laughter] >> These fans are about to have the best day of their lives. Watch as these celebrities surprise their biggest fans when they least expect it.
>> [laughter] >> Leading to some of the most unforgettable reactions ever caught on camera. >> [laughter] >> In this feel-good moment, Tanner from Love on the Spectrum gets the surprise of a lifetime when one of his favorite celebrities, Jack Black, appears in person. His genuine excitement and heartfelt reaction make this one of the most wholesome celebrity surprises you'll see.
>> [cheering] >> To meet you in person is really amazing for me, too. >> Yeah, Jack, it's really amazing for me, too. >> This wasn't the first time Jack Black surprised fans.
He sees someone wearing a shirt showcasing his band Tenacious D. He then confronts the fan. >> I It's the highest form of flattery.
>> And that's not the only time a fan was caught completely [music] off guard. These fans came to watch a movie. Then, Daniel Radcliffe walked into the theater.
The reactions were instant, shocked, AND UNFORGETTABLE. >> I'M DAN, AND THIS WAS A DESIGNED act of deception, and I'm sorry, Sean. >> Disneyland guests thought they were seeing Captain Jack Sparrow until they discovered it was actually Johnny Depp.
Speaking of disguises, these fans thought they were posing with a mascot, but there was a catch. It was actually Dwayne Johnson inside the suit. >> Did we get it?
Did we get the shot? What's up, dude? Did we get the Did we get the picture?
>> [cheering] >> No tears. No tears. Hi, how are you?
>> Not every surprise comes from a disguise, though. These fans thought they were simply singing along to some classic hits until the voices behind them sounded a little too familiar. When the Backstreet Boys revealed themselves, the sing-along turned into a moment they'll never forget.
>> [singing] [music and singing] [music] >> And if you think these surprises were unexpected, this weather report was going exactly as planned until Chris Hemsworth [music] suddenly crashed the broadcast. >> And check out the beautiful the beautiful >> Heard you talking about the What are you doing? >> Well, we're doing the weather for the Today show.
Uh >> Apparently, one surprise wasn't enough for Chris. After crashing a live weather report, he teamed up with Ellen DeGeneres to pull off another unforgettable prank, showing up unexpectedly at an office and leaving employees in complete disbelief. >> How are you?
>> Oh my god. >> [laughter] >> Happy administrative >> No, we're not. >> Happy administrative professional day.
>> How are you? That's nice. >> OH MY >> [laughter] >> THIS IS AMAZING.
>> HOW'S IT GOING? THIS IS MY NEW OFFICE. >> SO, YEAH, WE KNEW >> Tom Hanks took a more direct approach.
What was supposed to be a beautiful Central Park wedding [music] suddenly became a once-in-a-lifetime memory when he unexpectedly joined the celebration. >> [laughter] >> What are you doing right here? What's your name?
My daughter's getting married. What's your name? >> Ryan.
>> Ryan, you're a lucky man. >> And that wasn't the only wedding getting an unforgettable celebrity guest. This couple thought their special day couldn't get any more [music] meaningful until Ed Sheeran showed up with a surprise performance.
>> Here he is. >> [cheering] >> Oh my god. >> [laughter] >> Oh my god.
>> Happy wedding, babe. >> When your legs don't work like they used to before. >> Some surprises bring excitement, but others bring something even more [music] meaningful.
For one young fan battling cancer, a surprise visit from Gordon Ramsay turned an ordinary day into an unforgettable one. >> [laughter] >> Good to see you. How was the gym?
>> [laughter] >> Hey. How was the gym? I'm sorry for interrupting class.
You good? I heard you in town. I wanted to come over.
I was on board and waiting to see you. Come here. Come here.
Come here. Come here. Oh my goodness, mate.
You looking amazing. >> Of course, Gordon isn't always making people emotional. He's also known for pulling off hilarious drive-thru pranks, catching unsuspecting customers completely off guard.
>> Hello. How are you? Thank you.
Just a quick look. It's only toasted one side. I asked for no mustard.
>> [laughter] >> Take care, guys. >> From celebrity chefs to Jedi masters, [music] few surprises are bigger for a Star Wars fan than meeting Luke Skywalker himself. Hidden behind a series of pranks, Mark Hamill catches fans off guard before revealing his identity.
>> Channel your inner Mark Hamill. Put your all into this. I need that to be more intense.
>> NO! [screaming] THAT'S IMPOSSIBLE! >> HEY, MAN.
>> OH MY GOD. >> NICK, what do you think of the view? >> Oh my god.
Oh my god. >> But not every fan can keep their composure when their idol appears. Bieber fan tries to kiss him.
>> Oh my god. >> [laughter] >> You're trying to kiss me? >> Yeah.
>> You did the kissing. >> Jax's mom thought she was having a normal day until she came face to face with her long-time [music] celebrity crush, John Stamos. >> I'll tell him why.
>> [music] >> My mom is Uncle Jesse's girl. My mom is Uncle Jesse's [music] girl. >> [singing] >> Hey, Uncle Jesse.
>> [music] >> These fans thought they were just sharing their thoughts on Loki until Loki himself showed up. >> Sure. Hello.
Thank you for that. >> YOU'RE ALL BENEATH ME. I AM A GOD, YOU DOG CREATURES.
>> HELLO. >> I am a god, you dog creature. >> Yes, you are.
>> Tom, hi. So, oh my god. Oh my god.
Sorry. I am a god, you dog creature. >> Hi, Kelly.
>> Oh my god. >> I am a god, you dog creature. >> Hello.
>> Hi. >> [laughter] >> How are you? >> The surprises didn't stop there.
These fans thought they were celebrating their love for Billie Eilish through a dance challenge until Billie herself appeared and completely changed the moment. >> Thank you, baby. It's like what they say, such a small world.
Oh my god. Oh my god. Wait.
Oh my >> [screaming] >> Oh my god. Hello. >> Disneyland guests were excited to meet the Mandalorian, but they had no idea the man behind the helmet was actually Pascal himself.
>> travelers on their journey. >> Bumblebee, of course. [music] >> Why Bumblebee?
>> Cuz he's a robot. >> What if Bumblebee was John Cena? >> Mhm.
John Cena? >> John Cena. You guys have never smelled my gas.
I have a horrible gas mileage. >> That's amazing. >> Bumblebee.
>> But there's nothing in that photo. >> This guy's done his homework. >> While some celebrities hide behind costumes, others just show up unexpectedly.
This fan never expected a knock at the door from Conor McGregor, and his reaction was pure shock. >> What's up? >> Holy man.
>> How are you doing? >> I'm good. HOW ARE YOU?
>> [laughter] >> THIS IS AWESOME. >> I'M BLOWN AWAY. >> HEY, BUDDY.
THIS MAN, I I drove by a couple of times. I was like, what the >> Yeah. >> I thought I was seeing things.
I was like, what the >> No, it's been up since your Max Holloway fight, man. I said >> No way. >> Okay.
Trophies, um Am I allowed to cuss? >> Sure. >> Oh, I go to sleep I go to sleep with a suitcase.
Oh my god. >> That just happened. >> Musician Marshmello reveals his never-before-seen face to a fan.
>> [cheering] [cheering] >> This bride thought she was about to share a normal first dance with her new husband until her favorite country artist, Mark Wills, appeared to perform it live. >> [singing and music] [singing] [music] >> Of course, a little bit in that is multi-platinum selling Nashville country artist Mr >> She was talking about Usher when he suddenly appears. >> love like you spread it.
I just love him so much. >> [applause and music] >> David Dobrik introduces fans to Kylie Jenner who's hiding in his car. >> [music] [music] >> Johnny Depp enters a kids hospital as Captain Jack Sparrow surprising fans and making their day.
>> [laughter] >> Really? Just for three hours. Who names Miranda here?
So is mine. >> [laughter] >> Let's get down to brass tacks. All right, this >> Billie Eilish appears out of nowhere, SURPRISING EVERYONE.
>> [screaming] [cheering] >> THANKS FOR WATCHING. SUBSCRIBE IF YOU'RE NEW around here, and check out the video on screen now.