It's a Star-Studded Fright Night!

See Katy, Rihanna, Snoop and more scare up some fun in their Twitter pics

  • KATY PERRY photo | Katy Perry

Credit: courtesy Katy Perry

Updated: Thursday Oct 10, 2013 | 06:00 AM EDT By: Cara Lynn Shultz

KATY PERRY

California Ghoul? While visiting Knott's Halloween Haunt, the annual event at Buena Park, Calif., amusement park Knott's Berry Farm, Perry got into the spooky spirit by getting her face painted like a skull. "Be honest with me, do I look tired?" she Tweeted.