It’s easy to spot a Gieco commercial these days by their repeating gags and themes. One of their most popular ad series is their Happier Than commercial. <br /><br />To kick off the NBA season, the Dallas Mavericks made this humorous spoof of Gieco’s Hump Day commercial featuring Dirk Nowitzki. <br /><br />http://www.youtube.com/watch?feature=player_embedded&v=IwrstxuicZk
