#Barz. That’s the word that’s got Rihanna and Nicki fans all excited, according to MTV. Last night, Rihanna posted song-like tweets with the hashtag #Barz. Five days ago, Minaj used that same hashtag to go with a drawing she posted on Instagram. OK, so it’s not exactly irrefutable evidence that the two artists will be working together, but it’s certainly a great talker.