Meg Ryan, 55, absolutely stuns in sequins at the CFDA Awards

Nearly every designer that hit the red carpet at the 2017 CFDA Awards on Monday night had a very famous date -- and Christian Siriano's was the stunning Meg Ryan.

In what's being called a "surprise appearance," the 55-year-old actress turned heads for all the right reasons in a sexy white, sequined dress by Siriano. She kept the rest of her look just as simple, accessorizing with a diamond bracelet, natural makeup (she was glowing) and relaxed ringlet curls.

See the flawless look:

She was one of a few longtime actresses who evoked nostalgia at what's been dubbed the "Oscars of Fashion," including Nicole Kidman (wearing Oscar de la Renta), Brooke Shields (wearing and accompanied by designers Sachin & Babi) and Bernadette Peters.

See all the red carpet looks below: