Thanks in part to their perfectly blended harmonies and wickedly clever arrangements, the a cappella group Pentatonix are on a massive winning streak right now. You may not be able to sing like Pentatonix, but you can learn from their success. In addition to their abundant musical talents, they are also experts at content marketing.
The importance of loyalty in social media marketing can't be underestimated. It's relatively easy to attract a bit of initial attention through the use of humorous, entertaining, surprising, or otherwise captivating content, but if you don't hold your followers' attention for the duration of your relationship, you're bound to lose them.