Taking a page out of Cassie's book, Rihanna has shaved the side of her head.

She showed off her new look earlier today as she was getting ready to board a boat in Sydney, Australia, where she's busy promoting "Battleship."

Although we're quick to make the Cassie comparison, it's actually pornstar Skin Diamond who RiRi appears to be favoring.

Could the raunchy pop queen be pulling her influences from porn?

For Rihanna, we don't think that's much of a stretch.

[Just Jared]