Keleigh Teller/Instagram Keleigh Sperry was decked out in red and black to support her bestie ... shimmering Gucci gown in one photo. The green dress matched Sperry's light blue sequin gown ...

While Sperry sported a gold mask and black lace Rasario dress, Teller opted for a Phantom of the Opera-inspired look and paired his mask with a black cape over his suit and white shirt. Keleigh ...