One Direction celebrated the release of their wildly anticipated Midnight Memories with an intimate iHeartRadio Album Release Party, filmed last month at the 450-capacity iHeartRadio Theater in Los Angeles . Along with singing six songs, they participated in an audience Q&A that was barely heard above the din of hundreds of squealing and squeeing fans. Watch the full party they've aired on CW Network last night here: http://www.youtube.com/watch?v=NZv-ddFCMQU&feature=youtu.be