The actress' Captain America: Civil War costar gave her a scream when he surprised her on The Ellen Show.
The Hunger Games star looks a bit frightened when he finds himself in the clutches of the monsters at Universal Studios.
The "Good for You" singer got a scare from someone dressed like her bestie Taylor Swift.
Poor Lea! The Glee alum and Scream Queen star got the fright of her life, courtesy of Michael Meyers.
The Empire costars and real-life couple protect each other from the crazy creatures running around Halloween Horror Nights.
As it turns out, the Ghostbuster star is afraid of ghosts!
The celebrity couple explored the haunts at Halloween Horror Nights to get into the spooky spirit.
The Tonight Show host was not expecting Ellen to pop out, but a hidden camera captured everything.
The actresses had a spooky group outing with the musical group during their trip to Halloween Horror Nights at Universal Studios.
The Gossip Girl alum looks a little too calm at the sight of his friend getting a bloody chainsaw to the throat.
Becoming an American citizen shouldn't be so scary, but unfortunately that wasn't the case for the Edge of Tomorrow actress.
The Disney Channel star looks ready to take on the scares at Universal Studios' Halloween Horror Nights.
The hunky actor had to go face-to-face with his biggest fear: a porcelain doll.
The Twilight alum manages to look beautiful posing next to a duo of creepy creatures.
The ex-couple pose in front of the Psycho house during their night at Universal Studios.
The Kick-Ass star is surrounded by chainsaw-wielding maniacs while checking out the haunted mazes at Halloween Horror Nights in Universal City, Calif.
Ellen teams up with a cougar to scare the singer, who still looks flawless even when she's screaming.
The Pretty Little Liars beauty lets out a blood-curdling scream during a trip to Halloween Horror Nights at Universal Studios Hollywood.
The Scream Queens actress poses for a shot after a screaming good night at Halloween Horror Nights in Orlando.
The "Wrecking Ball" singer got a shock when a Robin Thicke lookalike snuck up on her while she appeared on The Ellen DeGeneres Show.
He might be a Scream star, but it's nothing but laughs from the actor right before he enters The Walking Dead maze.
Scream's iconic Ghostface elicits a scream from the actress while she chats with Ellen DeGeneres.
The Southpaw stud is scared stupid by the creepy doll that pops out from behind his chair.
Even the Goosebumps star can't hold back a scream at opening night at Universal Studio Hollywood's Halloween Horror Nights.