From tears of disbelief to full-blown shock, nothing prepares a fan for the moment their idol walks in unannounced. These are the times when celebrities went out of their way to surprise their biggest fans. A reporter was doing a live weather update in Australia when Chris Hemsworth himself decided to casually walk into the frame of Australia, but I was yet to find a horse.

So, I thought I should hot foot it up to one of the horse studs and check out the beautiful the beautiful heard you talking about looking for some horses. There's a bunch down here actually which I've noticed in the paddic. In another classic moment, Mark Hamill taps into his inner Luke Skywalker as he snuck up behind Star Wars super fans.

one more time because remember this is like a moment that completely blindsides. You never expect he has no idea. He didn't see this coming.

So I really really need you to me. Okay. Luke, I am your father.

No, that's impossible. You can't be Dad. Vader, how are you, man?

Wow. But nothing tops the moment when The Rock and Jimmy Fallon wore giant mascot heads of themselves and photobombed visitors at Universal Studios. But one mega fan in particular couldn't hold back his tears.

Two one rock. My man, my hero since I was like 5 years old. Did we get the shot?

What's up, dude? Do we get the Do we get the picture? I think we got it.

No tears. No tears. I think we got it.

Look, dude. Hi, H. Nice to meet you.

I think we got the photo, man. Oh my god. Look at that, dude.

Oh my god. You too, dude. He's got a tattoo of you.

Oh my god. Like Harry meets Sally, but I felt like it was like a real life love story. I don't know.

Oh my god. Oh my god. Oh my god.

Oh my god. I'm like freaking I'm Dan. This was a designed act of deception and I'm sorry for that.

Hi. Yeah, it would make me more comfortable if I shut down. Nice to meet you.

When a fan approached actor John Stamos, revealing that her mother is his biggest fan and had a lifelong crush on him. He joined the force to create an unforgettable surprise. Stamos.

Hi, John Stamos. Notice our video. Notice us.

or tell him what you're beautiful. You married. 3 2 1 Star Wars.

Star Wars. That was really good. That was really, really good.

Really good photo. Hey, how you doing? You all right?

I'm right. How you doing? She's actually shaking.

Kind of like do your best red carpet spin for me. Your best bed best red carpet spin. Like, yeah.

What the Robert Downey Jr. took things to a different level when he surprised a 7-year-old boy born with a partially developed right arm with a special gift. How are your travels?

It's very good. Well, I thought I'd bring uh one of my gauntlets and match it up with yours and uh see if everything's copacetic. You want to have a look?

Sure. You know who that is? Iron Man.

of robotic technologies. Bang, nailed it. Speaking of super fans getting the shock of their lives, South African rapper show Majosie had written an entire song about her idol John Cena, never imagining she would meet him face to face.

However, nothing compares to the way Johnny Depp pulled off a wholesome surprise for Disneyland riders as Captain Jack Sparrow pretending to be an animatronic robot. That's a robot, bro. Everybody, drop your weapons and put your hands up.

I've been expecting you for hours. So do I. Bring it.

Does the sword make my bundle of me? Naughty. Some surprises are purely unintentional.

Playing has such an impact. Watch the girl on the right. She had no idea that's who was going to pop down next.

Some encounters are just pure fun. Billy Isish decided to sneak up behind two fans who were completely absorbed in a dancing video game set to her own hit song. Even a simple jog can turn into a viral moment, like when Tom Hanks was running through Central Park and stopped to congratulate a newlywed couple during their photo shoot.

Well, by all mean that right here. What's your name? Elizabeth, my daughter's name.

What's your name? Brian. Brian, you're a lucky man.

Elizabeth, you've done well for yourself. Oh, wait a minute. Good.

Okay, so Elizabeth and Hey, what's up, guys? How you doing? I love your t-shirt.

Thank you. Awesome. Who's on your shirt?

You got Iron Man. Spider-Man. That's you.

That's me. And speaking of dreams coming true, fan favorite Tanner from Love on the Spectrum had one simple wish. He just wanted to meet Jack Black.

What's up, Tanner? Cannot wait to meet you in person. But I'm on the road with a Minecraft movie right now.

But luckily, I have insane ninja kung fu powers, which means I can come through these doors and I'm going to I'm going to see you right now when I come through the story. Thank you. Jack, Jack, thank you so much, Miss Kelly.

Miss Kelly, thank you so much. This the best day of my life. On a more spontaneous surprise of all, two random UFC fans were impersonating fighter Conor McGregor on the streets of Dublin when a driver rolled down his window and called them over for the surprise of a lifetime.

And speaking of unexpected guests, a blindfolded Steve had to guess the identities of his special celebrity visitors, Ice Cube and Kevin Hart, who were there to give him a hilarious surprise. I need I need a hint. Hey, man.

You uh you've always you've always been an important guy to me. Okay, give me another clue. I'm one of the coolest dudes ever.

I'm one of the coolest dudes ever. Wait a minute. Farel Williams arranged an unforgettable moment for a devoted fan after she raised thousands for charity following her father's death from brain cancer.

I think it's about time he went and met Holly. Okay. Ollie, surprise, surprise.

These next fans had no clue that the real Spider-Man star, Tom Holland, was the one behind the mask. Yeah, that's awesome. Holy cow.

Yeah. Jennifer Aniston pulled off a hilarious prank by hiding behind the iconic orange couch on the Friends set, hopping out to surprise fans during their studio tour. Friends here at Warner Brothers Studio Tour Hollywood.

This is the real set. Just sit right here all for you. Who is your favorite friend?

I would say Ross. But look right over here. Sometimes a surprise arrives exactly when it's needed most.

Ed Sheeran gave a deserving couple a wedding gift they'll never forget. because your lovely partner Ka has been going through a really really difficult time. Ka's mom unfortunately took her own life um in a very uh difficult circumstance.

So we wanted to make your first dance a little bit more special today. That's right. So we're going to leave you with a little wedding singer that we organized and we hope you enjoy everyone.

Ladies and gentlemen, the first dance as a husband and wife bring in the wedding singer please. Here he is. Oh my god.

Oh my god. Yet Ben Affleck took an even more immersive approach by hiding inside the actual Batmobile during a Warner Bros. Studio tour to give unsuspecting fans the shock of a lifetime.

Who do you think would actually win in a fight, Batman or Superman? Superman. Superman.

Who says Superman? That's unbelievable. How you doing?

But now everyone's How you doing? Before it was Superman. Superman.

Are you real? I am real. Whoa.

He drives that mobile. Superman doesn't even have a cool car to put. Yet few are as dedicated to surprising his fans as Johnny Depp, who often dresses as Captain Jack Sparrow and shows up unannounced at children's hospitals.

Your name is Miranda. Is it? Yes.

So does mine. Let's get down to brass tax. I this Um, I'm going to guess that you're a very patient.

I don't know if you're sick. It's like a hiccup, only it's the sound of a chicken hiccup. Make Do you have any idea what I'm talking about?

No. Me neither. That's us.

We're stuck that way, you and me. Sensitive types. Hang on a kiss.

No, you can go up. No. No.

We've come to take you to the rooms. Hello. Hello.

That's Scrum. Hello. Lovely to meet you.

Oh my gosh. He's filthy. No, I'm not.

Yet, some of the most memorable surprises are the simplest. When trick-or-treaters knocked on a decorated front door on Halloween, singer Olivia Rodrigo answered, leaving the kids in pure disbelief at coming face to face with their favorite artist. Hi guys.

Hey, do you guys have a favorite singer? Taylor Swift, Olivia Rodrigo. Olivia Rodrigo.

Yeah. Well, that's a good answer. Happy Halloween.

Thanks for saying that. You made my day. Want some candy?

Sure. Let's do it. Sir, are you having a stroke?

Drke took disguise to a whole new level when he went undercover on Jimmy Kimmel with a wig and glasses to interview fans about himself on Hollywood Boulevard. Two questions. What would you say to Drke if Drke was here right now?

If Drke was here right now? If Drke was here right now? Uh, I probably would freak out and ask him if I could get a picture with him.

Really? Are you a Drke fan? Definitely.

What's your favorite Drke song right now? Let's hear it right. Uh, am I allowed to cuss?

Sure. Oh, go to go to sleep with his suitcase. Oh my god.

But when it comes to surprising his fans, John Cena never disappoints. He teamed up with Qriket Wireless to give a young super fan a memory of a lifetime. I love John Cena.

I like every single time he wrestles any single person that's in the um WWE. He is amazing. I would risk a limb to meet John Cena.

John Cena was here right in front of you. What would you do? I would be I would be yelling John Cena.

John Cena. If you make the three-point shot, you win $25,000. All right.

So, I asked someone to help you out. So, you wouldn't just get one hug if you if you miss. will get two hugs.

Um, please welcome Kobe Bryant. Woo! But nothing tops the moment when this groom organized a surprise for the bride with her all-time favorite country singer, Mark Wills, after she thought her first dance was ruined.

Dance like you've never been hurt. All your waiting is over. Just look in my Oh my How's the tour going?

Good. I just wanted to see if anyone want to take a spin in the Batmobile. How about you?

You want to take a spin? Come on. You I saw you move for first.

Come on over here, guys. But some surprises are truly life-changing. When Dwayne Johnson heard about UFC fighter Thema Gerimbo, who used all his fight earnings to build a water well for his village in Zimbabwe, leaving him with just $749 and sleeping on a Miami gym couch.

The Rock showed up in person to hand him the keys to a fully furnished home, bringing Thea to tears. A message from one of the guys from the management. He's like, "Did you see your Twitter?

" Then I said, "What you mean? " Then I say, then I look up. Then I see, oh, it's the Rock who wrote to me and say XY.

And I was like, "What the hell was this? " Yeah, it's it's a blessing, you know. I I just feel like, you know, it's it's the life we live, man.

Oh my god. What's up, brother? Good to finally meet you.

Thank you. Thank you so much, man. Thank you.

Oh man, look. Look, you inspire me to work hard, man. Thank you.

A few moments later, got a lot of people. But Jay, the technical, look at those pictures over there. Isn't that cool?

I saw like your money. It's my my family. Oh my god.

So, hey, I wanted to bring you here. So, Tamba, um I I don't I don't know anybody who lives here. I wanted to come here.

I wanted to bring you here. I wanted to look you in the eye and I wanted to tell you welcome home. Oh my god.

Thank you. Ah, thank you so much. Thank you, brother.

Ah, man. Thank you. Thank you.

Thank you. Thank you.