March 6, 2010 - Alberto E. Rodriguez/Getty Images North America more pics like this »
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10. Jennifer Lopez at the 2010 Oscars
At the 2010 Academy Awards, JLo emphasized her killer curves with this voluminous Armani Privé number. The gorgeous pale pink gown was from the Spring 2010 collection and featured a sculptural strapless design with a flowing side train. Ferragamo pumps completed her look.

There are so many things to love about this dress but what's so fascinating about it is it looks like a totally different gown on the other side. From this angle, it's sexy and vampy. From the opposite angle, it's sweet and princess-y thanks to the voluminous train.