Chris Brown
The "Liquor" singer poses with his ghoulish crew during an evening out at Universal Studio's Halloween Horror Nights.
Taylor Swift
The singer isn't quite ready for a dinosaur to jump out and scare her while she sits down with Ellen.
Alessandra Ambrosio
The Victoria's Secret Angel got a good fright from much scarier angels during Orlando's Halloween Horror Nights.
Selena Gomez
The "Good For You" singer falls victim to a vampire while she appears on the daytime talk show.
Debby Ryan
The blonde Jessie star finds plenty of ghosts and goblins during her trip through the mazes at the Universal City theme park.
Julie Bowen
A spotted dinosaur gives the Modern Family actress quite a shock.
Seth Green & Pete Wentz
The actor and rockstar couldn't keep a straight face when confronted by some hideous monsters at Halloween Horror Nights.
Jane Lynch
The actress, dressed as her character from Wreck-It Ralph, is surprised by a clown on the set of The Ellen DeGeneres Show.
Cameron Diaz
The actress behind The Mask never thought she'd see that familiar green face 20 years later on The Ellen DeGeneres Show.
Halle Berry
A man dressed as a roach terrifies the Cloud Atlas actress in the middle of her interview.
Derek Hough
The Dancing With the Stars regular is all smiles despite the terrifying monster towering over him and his friends at Universal Studios.
Olivia Holt
The Disney Channel star isn't afraid to be a scaredy cat while going through the mazes at Halloween Horror Nights.