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President Ronald Reagan smiles as first lady Nancy Reagan waves to guests at the Ball for Young Americans at the D.C. Armory in Washington, Jan. 21, 1985. President Reagan re-enacted his oath of office earlier in the day in the rotunda of the Capitol. (AP Photo/Ira Schwarz)

Fashion face-off

From Jackie O. to Lady Bird to Nancy Reagan, through the years fashionable first ladies have donned their glittery frocks and twirled into the night at the Inaugural Ball. This year, Michelle became the first Democratic first lady in at least a century to wear red the the Inaugural Ball.