As Gleekers anxiously await the upcoming Glee themed Super Bowl episode featuring both Katy Perry's "California Gurls" and Michael Jackson’s "Thriller," a preview of the "California Gurls" opening performance by Katy Perry has hit the web.Ahead of Super Bowl Sunday on February 6, EW has an exclusive look at the Glee opening of "California Gurls" by Katy Perry for the long awaited Super Bowl episode that follows the annual NFL championship.
