[video=youtube;QhNow6hBO7Q]http://www.youtube.com/watch?feature=player_detailpage&v=QhNow6hBO7Q#t=878s[/video] Starts at about 14:30. GSP will train with anyone who can make him better.
I think that a lot of people forget or just plain don't know Joe Rogan was a legit, top flight Tae Kwan Doe guy back in the day, his kicks are pretty sick. That low kick that he follows the spinning kick with looks painful.