I can believe it. Many younger people who only knew MJ as the weird, plastic surgery obsessed baby dangler are now checking out his music. While I am not a huge fan, I did go on YouTube last night and show my 10 year old DD some classic videos- Billie Jean, Beat It, Thriller, etc- so she could "get" why there was so much coverage of his death. She didn't realize it even was the same Michael from seeing his post-surgeries face compared to the (realtively) unaltered MJ of the early 80's.
I don't currently own any MJ music, but I might download some now- Off the Wall and Thriller, probably.