"I didn't see her laughing at me... It looked like she was shocked because I was doing something different" - @ArianaGrande on Rihanna
— The Bump (@bumpshow) May 5, 2014
Classy, safe response from Ariana. But whether Rihanna was being shady or not, seeing Ariana do choreography for the first time was pretty LOL-worthy to me. Perhaps one day (and with more practise), Ariana will become an excellent, world class dancer like Rihanna.