This Year's 20 Biggest Trends

Miley, Kate, Diane and more showed off 2009's hottest fashion trends – but did you try them? Vote now!

  • CUT-OUT SIDES  photo | Ali Larter, Hayden Panettiere, Kate Hudson

Credit: Donato Sardella/WireImage; Jackson Lee/Splash News Online; Axelle/Bauer-Griffin

Updated: Tuesday Dec 22, 2009 | 06:00 AM EST


Not for the weak of heart or the modest, black tops and dresses reveal peekaboo skin on Ali Larter, Kate Hudson and Hayden Panettiere.