Rihanna can be seen topless in the artwork for her new album, "Loud" -- but it's not like we haven't seen it all before. RiRi shows off her impressive cleavage every time she gets a chance.
In fact, her only rival in the va-va-voom department may be Perry, who views even hanging out with Elmo as an opportunity to display her double-Ds.
But perhaps Rihanna and Perry are taking their cues from an older generation of Hollywood starlets who have officially done away with modesty. After all, big boobs equal big publicity.