Selfies are a hit among celebrities and the masses, but singer Katy Perry calls them a "disease".
The Roar hitmaker was enjoying her weekend at Coachella music festival here when she was asked by a fan to be a part of selfie, which has people taking their own pictures.
She kept on refusing. But when her fan kept on requesting, she agreed to appear in the picture.
Perry later posted on Twitter: "Dear festival friends remember, selfing is a disease."