The holidays are over, both on the calendar and on the pop charts, and that's great news for an assortment of beneficiaries.

Every Monday, Billboard unveils the top 10 songs on the latest Hot 100 chart. The most recent rankings, for the chart dated December 2, are out now, so let’s run down who had this week’s biggest hits.

Joel Whitburn, whose books of research on the charts were a staple of the bookshelves of anyone who cared about the history or business of pop music for decades, died Tuesday at age 82. No cause of ...