Katy Perry covers the latest issue of Rolling Stone and she's sporting a hair colour that has one wondering if she's pursuing a part as an extra in the musical "Wicked." Perry is favoring green for her Rolling Stone closeup. She's paired the granny apple hair with a rather psychedelic top and lavender beaded necklace. Yes, this is definitely a music cover and not a fashion issue. Regardless of the rather interesting styling, it's hard to make Katy Perry ever look anything other than absolutely stunning.