Celine Dion is remaining optimistic.The Canadian singer tried to encourage positivity among her Instagram followers as she shared a photo of herself hugging the branches of a snow-laden tree.MORE: Celine Dion shows off her natural grey hair"A new year brings new hope," Celine wrote last week. "As we are all still facing incredibly challenging days ahead, let's take good care, look after each other and remember that lighter and brighter days will be with us soon.