Britney Spears over the years: 11 sexiest tour outfits (Photos)

Slideshow posted in Photos | Wednesday, September 18, 2013

10 of 12: Britney Spears performs a concert in Zurich, Switzerland as part of her Femme Fatale tour on Oct. 3, 2011. ( Photo / flickr.com/photos/40826712@N00/)