With 1.5 million concert tickets sold, over 1 billion streams on Pandora, and over 2 million albums sold worldwide, Straight No Chaser is not your average men’s a cappella group. The nine-man vocal group got its start thanks to the internet. In 2006, original member Randy Stine uploaded a 1998 performance of his college group’s “The 12 Days of Christmas” to YouTube to share memories of their glory days with his school buddies. Atlantic Records Chairman/CEO Craig Kallman saw the video, sought the guys out and signed them. Ten years later, they’re still going strong.