The 16-year-old actress and the sister of Dakota Fanning, sat on the front row at the Miu Miu catwalk show at Paris Fashion Week earlier this year alongside Oscar-winning actress Lupita Nyong'o and Elizabeth Olsen, reported Contactmusic.
"And Rihanna was there! That was really cool. I waved and said, 'Hi!', and she said, 'Hi'. She had her sunglasses on. She is so fashionable. When she walked in with her big fur coat, I was just - wow!," Elle said.
The 'Maleficent' actress took part in her first fashion shoot when she was just 12 and was not fazed by the experience.