Katy Perry is giving fans a glimpse behind her viral glitching "doll eye." The 38-year-old singer revealed the secret to her bizarre performance look that left people puzzled last year. "I do this ...

Katy Perry always likes to keep one eye open — here's why Katy Perry has a few beauty tricks up her sleeve after sitting in countless hair and make-up chairs over the years. The "California Gurls" ...