I would say Rihanna's popularity is close to Whitney Houston's popularity during the 90s. Whitney was seen fat a few times and even performed on VH1 fat once too with a fat Bobby Brown. The weight will go away quick for Rihanna just like Whitney's. I think singers should be allowed to gain weight during their down time if they want to. There is no need to write articles about her weight gain when everyone already knows it will be gone by the time her next album comes out.