Fake AI photo of pop star Katy Perry at Met Gala was realistic enough to fool her mom

An artificial intelligence-generated picture of pop star Katy Perry purportedly attending the Met Gala on Monday looked real enough to fool her own mother. Ms. Perry posted the deceptive image on Instagram alongside a text conversation with her mom, as well as a second AI image depicting Ms. Perry in a different outfit. “Lol mom the AI got you too, BEWARE!,” Ms. Perry wrote to her mother. Eagle-eyed observers noticed details that proved it was AI, including the tell-tale misshapen fingers, a photographer missing part of his head, and a...