Haha love the red riding hood and Mortal Kombat references in Annie's and Shen's pics.
But about Shaco's picture, I'd assume that Shaco represents the Joker and that Sivir represents Wonder Woman, but what comic book character does olaf represent?
Skip to 1.06. The original video with over 13,000,000 is blocked due to copyright. If you dance as Olaf in game, its this Techo Viking dance