In March, much of the world began isolating itself due to the global outbreak of COVID-19 -- and a result, Billboard’s Top Facebook Live Videos chart tracked more uploads than ever, as multiple musicians and bands uploaded videos from quarantine to their Facebook.Gusttavo Lima leads the way, ruling the March 2020 edition of the chart thanks to a March 27 clip in which he performed a concert from home.The chart, the latest of which recaps March 2020 activity, is a monthly look at the