Rolling Stone Magazine put the performance on their site, I can’t see it yet, but maybe someone else can!?
http://www.rollingstone.com/music/news/beyonce-rips-through-album-medley-at-vmas-2014-20140825
MTV
BASP – Madonna, Britney Spears, Christina Aguilera – Like A Virgin – Live @ MTV VMA 2003
And then this happened 11(!?) years ago…
BASP – Britney Spears – I’m Slave For U (Live @MTV VMA 2001)
The summum of Britney. I’ve never seen anyone dance like that with a snake.
BASP – Madonna – Vogue (Live @MTV VMA 1990)
You even forget she has no mic. THIS is why she is called the queen of pop.