2023 Met Gala was a star-studded evening, but some major A-listers sat the night out. Katy Perry, Kris Jenner, Blake Lively and more Met Gala mainstays did not walk the iconic steps on Monday night.This year's Met Gala theme was «Karl Lagerfeld: A Line of Beauty» and celebrated the full work and life of the late designer, who died in February 2019 at age 85.