Having second thoughts about your short crop? Take a tip from Jessica Alba, Chloe Moretz, Vanessa Hudgens and Selena Gomez, who transformed their short and shoulder-length hair into long layers overnight with the help of some last-minute extensions. At the press conference for the 2011 MTV Europe Music Awards, Bieber's BFF rocked a wavy chin-length cut, which turned into a lush, long ponytail in time for the awards show the very next day.
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2011's New Style Stars
Most Memorable Style Moments of the Year
Most Stylish Men of 2011