Confession: I may have rewound the promo for next week’s episode of Glee, featuring Neil Patrick Harris as Matthew Morrison’s old rival and current nightmare, three times. And when I say “the promo,” I really mean just the three seconds of Harris and Morrison belting “Dream On.” That number has a lot to live up to: According to PopWatch polls, Harris was by far the Glee guest star readers were most looking forward to in the second half of the season, and this duet was the most-anticipated number. I find it sort of odd that the promo didn’t mention that the episode is directed by Joss Whedon, but perhaps Fox thinks anyone that matters to already knows. Watch the promo (again) after the jump. How many times did you rewind? How confident are you that “Dream On” will end up being as awesome as Harris’ flashback mullet?