Lol Katy Perry is Rihanna's best friend enough said. They are both make the same crap music . Beautiful liars was a great song it still has the highest jump on billboard Hot 100 it was TOP 10 in over 32 countries and N0 #1 in 12 but i dont get why she brought the song into the conversation. Beyonce and Shakira's collaboration was very different because they have very different music and blended it togehter so how would her colab with rihanna even come close to that?? Katy and Rihanna's music arent that different, they both sing pop music, its the same crap so their colab isnt even unexpected.. As for Katy that bitch dont no what the hell is Iconic cause none of her music is even close