1 / 100

Samuelson and Bates of the US perform in the ice dance free dance figure skating event at the Vancouver 2010 Winter Olympics

Emily Samuelson (L) and Evan Bates of the U.S. perform in the ice dance free dance figure skating event at the Vancouver Winter Olympics February 22, 2010. REUTERS/Gary Hershorn/File Photo

2013 world figure skating championships

The world's best skaters are in London, Ont., for the biggest event of the season.