Last night at the White House, it didn’t take much to become a fashion insider. Even though the first lady’s Doo-Ri Chung gown remained a tight-lipped secret until the last minute, everyone seemed to mirror Michelle. Watching guests glide past reporters prompted a sense of déjà vu. Purple? Check. One shouldered? Check. A little bit of sparkle? Check. As previously noted, even ABC News’s Juju Chang, whose dress was “crowd-sourced” by viewers, stuck to the same formula. We were left feeling a little nostalgic for the wow-factor of the China state dinner red carpet. Thank goodness for the hanboks.

The stalwart: Michelle Obama’s Doo-Ri Chung gown featured an attached belt made of crystals wrapped in chiffon. (Alex Wong/Getty Images)

For the people: Newscaster JuJu Chang’s purple, one-shouldered gown by designer Pamella Roland was chosen by viewers on the ABC News site. (Bill O'Leary/The Washington Post)

The one who almost got away: Entrepreneur David Kim and Minjae Yuh may have almost missed their invitation to the party, but they got the memo on the red carpet uniform. (Bill O'Leary/The Washington Post)

Pretty in purple: Newsman Scott Pelley’s wife Jane Boone Pelley stuck to the violet trend. (Bill O'Leary/The Washington Post)

Full of sparkle: Kathlene Eugenie King arrived in a purple gown featuring shimmering gold accents alongside Robert "Bob" King, president of the United Auto Workers. (Andrew Harrer/Bloomberg)

See more photos from the South Korea state dinner red carpet.

More White House state dinner stories:

Korea state dinner guest list

Who’s at the state dinner head table?

Michelle Obama’s state dinner dress by Doo-Ri Chung

State dinner menu: Fall harvest flavors, tunes by Janelle Monae

State dinner fashion: VIPs arrive at White House