Levon Helm, legendary singer and drummer for The Band, died of throat cancer at age 71 on April 19, 2012. It is unclear exactly what happened over this past month, but media reports state that he was diagnosed with vocal cord cancer in 1998 and underwent 28 sessions of radiation treatment at the Memorial Sloan Kettering Cancer Center. His cancer was almost certainly due to his 3 packs per day smoking and though he quit with his initial cancer diagnosis, cancer being what it is, it can alwa…