Diddy asked everyone to put on their dancing shoes at home to help raise money for healthcare employees in underserved communities, and a number of superstars -- including Jennifer Lopez -- joined the effort.Diddy held the "world's biggest dance-a-thon" Sunday afternoon (April 12) on Instagram Live, encouraging followers to make donations to a COVID-19 relief fund at teamlove.com in support of frontline workers.Among the many guests joining the first half of his live stream on Easter Sunday were Lopez, DJ Khaled and Kelly Rowland."Did I teach you that?" J.