Halloween is just mere hours away, but with the holiday landing on a Wednesday this year, many people celebrated this past weekend - including the celebrities! In full costumes, the celebs had many parties to choose from. One party that was packed with celebs: Glee's Matthew Morrison's birthday Halloween soiree at Lure in Hollywood! From Glee cast members like Chris Colfer and Dianna Agron to Lance Bass to Big Time Rush's James Maslow, there were celebs in every corner - Justin Timberlake and Britney Spears even made a cameo! (Er, sorta)