When local real estate agent Heidi Christensen made a blood donation recently, little did she know it would lead to a 4 day/4 night trip to see Macklemore in a December concert in Cabo San Lucas, Mexico, and a special backstage meet and greet with the multiple-Grammy-winning artist after the show. That's because Heidi's donation meant that her name was entered in a Donate and Win Music Experience as part of Bloodworks' Music's In Our Blood Campaign. The campaign is helping to generate awareness of the critical need for blood through music’s ability to drive connection, and recruit 10,000 new donors by the end of the year. So, as Christmas grows near, here's a special bonus "stocking stuffer" episode of Bloodworks 101 from producer John Yeager.