well about the video i gotta say some of the scenes are just a weird and also an unhappy coincidence...
but i'm sure rihanna is always copying beyonce, because i think rihanna has a problem in her own Ego, you know, rihanna wakes up thinking that she is better than B and she falls asleep thinking about it too...
rihanna is always trying to show us she can be better than beyonce and that's why rihanna have released too much albums in two years, one after one... and the most revolting thing for me was about the vma's when i read an article on net whose title was "BEYONCE WAS DEFEATED BY RIHANNA AT VMA'S"
well i know beyonce is currently recording a new album and it will be released in the first trimester of the year, so i'll look forward for that cd...
and beyonce must sing this to rihanna
you mustn't know about me, you mustn't know about me 
