Eugene Adebari / Rex
Cher, 1986
When Cher was informed of an official awards show dress-code, the presenter decided to make a statement. Her long-time collaborator (since the days of Sonny and Cher!) Bob Mackie designed a showgirl-worthy beaded black outfit with a cashmere cape, sparkling loincloth and a towering 2-foot headpiece made of over 800 rooster feathers. Making her dazzling appearance onstage, she cracked: "As you can see, I did receive my Academy booklet on how to dress like a serious actress."