Hem lines go up, hem lines come down. We've seen the super long and the super short and every length in between.
There's nothing new in skirts -- unless you think vertically. Lady Gaga did just that, coming out with a skirt that only covers the right side of the body. Fashion lesson: Falf a skirt is better than none.
Vertical lines also help those of us with tinier frames look a little taller for the camera, something Gaga has mastered.