If you've been deciding whether or not to join TikTok, now is the perfect time to do so!While people across the globe continue to stay home to prevent further spread of COVID-19, commonly known as the coronavirus, celebrities have been using the app to entertain their fans as they social distance.From videos of themselves dancing in their pajamas to hilarious lip-syncing, ET's breaking down all the best TikToks from the stars. ##happyathomeWe may not be able to see Justin in concert right now ( has been postponed in light of the pandemic), but watching him dance around his home with wife Hailey is the next best thing.