Spotted: Blood donors making red the color of the season. You know you love it. XOXO, Gossip Girl. Help us keep a blood shortage out of sight by scheduling an appointment to donate blood this holiday season. Blood donors — especially with types O, A- and B- — are urgently needed to keep up with hospital demand and ensure patients have the care they need when it matters most. #GiveWithMeaning #BloodDonor