The passing of Dick Clark does not particularly move me, nor that of Men at Work's Greg Ham. No disrespect intended - but like the Butthole Surfers say, "Strangers Die Everyday."
I did not personally know Levon Helm, either, but his vocal delivery (he was surely one of the great drummer-singers) and his occasional acting performances always pleased me. Here's the Martin Scorsese-lensed clip from The Last Waltz of Helm with The Band singing "Up on Cripple Creek." Respect to those who knew him; Helm passed away today, at age 71, of cancer.