K-Pop

The nation's pop culture is a government-funded export that has grown into the "Korean wave."

The boy band's single, "Dynamite," blasts it way to No. 1 on the chart. Korean pop music has its hardcore fans, and now the perky genre is officially a phenomenon in the U.S.

While it's unclear whether the social media campaign affected turnout at the president's Tulsa rally, fake signups to campaign events can corrupt data used for voter outreach.