Matthew Wilder’s “Don’t Break My Stride,” a 1980s one-hit wonder, has been going viral on TikTok for weeks. So has Roddy Ricch’s “The Box,” which beat Justin Bieber to number one on the Billboard Hot 100. When does virality start to pay? Today, we do the numbers on streaming, memes and chart success. Plus: fake coronavirus news, unemployment insurance cuts and in-home grocery delivery.