If we think a decade ago, these stars were the hottest things:
Britney Spears

Christina Aguilera

P!nk

Shakira

Beyonce

Kelly Clarkson

Avril Lavigne

Mary J Blige
.. I'm sure there are many others
Yes, today, they're still known, obviously. But clearly they've been taken over by new forces (eg Rihanna, Katy Perry). Yes, I KNOW that some of them still have some hits - eg Till The World Ends, Moves Like Jagger, Single Ladies, Waka Waka, but are they as "EVERYWHERE" as they used to be?
So my question is... are they over? Have they been left behind in another era that was 10 years ago?
I mean over as in
NEVER SEEING ENORMOUS SUCCESS AGAIN, not dropping from label