Katy Perry consistently wows with her showstopping stage performance, but a recent video of the star left fans concerned.
LOOK: Katy Perry shares the sweetest picture with rarely-seen daughter Daisy
In the video, half of Katy's face appears to be paralysed as she repeatedly tries to open her right eye. The singer is seen repeatedly tapping at the side of her face, appearing to wake the paralysed section, prompting fans to wonder whether what was happening.
WATCH: Katy Perry worries fans in performance video
One fan speculated that the 38-year-old is suffering from Ramsay Hunt Syndrome, the virus Justin Bieber had earlier this year, which left half of his face frozen, rendering him unable to perform.
MORE: Everything Katy Perry has said about having another baby with Orlando Bloom
READ: Katy Perry pays tribute to rarely seen mother on American Idol
Other fans sensibly speculated that Katy was merely struggling with her eyelash glue, writing: "Just looks like her lash got stuck," and: "When that lash glow isn't fully dry and you close your eyes…"
A more likely explanation, however, seems to be that Katy was merely playing up to her "wonk eye", which is highly popular with her fandom.
© Photo: Getty ImagesKaty Perry worried fans
During an episode of American Idol, the mother-one-of told a contestant: "I have a wonk eye as well, and I used to be worried about it. Then a bunch of my fans created a fandom over my wonk-eye.
GALLERY: Inside Katy Perry's pristine $32million homes
"I even have a fandom that calls itself, ‘Katy’s wonk-eye. 'It’s my right eye. So just celebrate all that stuff. Don’t worry about it."
© Photo: Getty ImagesKaty Perry has an eye condition
In 2011, she revealed the condition flared up "whenever I take pictures" and she had been given a prescription to help alleviate it.
Like this story? Sign up to our HELLO! Mail newsletter to receive all the latest royal and celebrity news straight in your inbox.
