Donna Summer dead at age 63 after her battle with cancer; she was known for such hits as “On The Radio”, “Last Dance”, “Hot Stuff”, “MacArthur Park”, “She Works Hard For The Money”, and more!

Insiders say she wanted to keep the disease quiet, and a friend said that as recently as two weeks ago, Summer seemed okay and was even finishing up work on a new album.

Summer was also the first artist to have three consecutive double albums reach No. 1 on the US Billboard chart.