Well i can see why Katy and Rihanna are so close. Katy helped Rihanna through some tough times after Rihanna left Chris Brown, Rihanna even refers to Katy in Stupid In Love. They are basically BFFs. This is really sweet of Rihanna.
aww! i would love them as lesbians though! that be incredibly HOT! While they are at it, perhaps they could write a song together about their exs(chris brown and russel respectively)! I'm sure it will be the biggest smash radio hit of the year. !