Country music lost one of the all-time greats in 2013 when George Jones died in April. His death, while not a total shock, was still tragic. Fans, friends and many who called the Possum an influence continued to grieve into the summer for one of the greatest voices ever. Over 20 well-known singers, songwriters and music professionals joined Jones this year, leaving behind important songs and legacies for the younger generations to carry forward. Here is a list of all country artists we've lost in 2013.