More cool stuff;
I compared 2 Popbars pictures of US iTunes; then combined them together to see the pop change:
Rude Boy:
First Popbar: 8:56 AM US Clock
Second Popbar: 7:06 AM US Clock
Imma Be:
First Popbar: 8:56 AM US Clock
Second Popbar: 7:06 AM US Clock
As you can see, Rude Boy popularity
is increasing, but BEP are too
(the doubled Popbar pic I made before was based on the 7:06 one)