“Here’s to my city!” Wiz Khalifa said to thousands of elated festivalgoers as the melody of his Pittsburgh Steelers-inspired anthem “Black and Yellow” began to play. The Pittsburgh native...

The Internet is good at coining ridiculous terms. Take “chillwave,” for example. It’s believed that an obscure blogger, after drowning in the chill vibes of Toro y Moi’s Causers of This, came up...