Well, it seems this big sis wasn't having any of it!
Koko took to Twitter on Monday with a very cryptic message about all the "sh*t", writing:
[Image via Instagram.]
First, the singer nearly owned the red carpet in an extravagant yellow gown, which took up pretty much the entire red carpet!
Then, RiRi took to the stage to perform three of her biggest hits!
The 27-year-old did a wardrobe change, as there was no way that Guo Pei dress would make for easy movement.
She switched out for a more performance friendly outfit — high waisted satin pants and a stunning red-and-gold tube top that showed off the girls! Her red satin gloves gave a delicious Moulin Rouge look!
[Image via Twitter.]