Katy Perry wasn't content with her shaggy short 'do celebrity hairstylist Chris MacMillan gave her a month ago, she wanted to go even shorter ... and now she has!

The pop star sheared off another few inches on top, leaving a short platinum spike on her perfectly-shaped head. Hey, if anyone can pull it off, she can!

The "Chained To the Rhythm" singer, 32, debuted the look Monday on Instagram, with the caption, "Fifth element flow," referring to Milla Jovovich's character in the hit movie franchise.

In other Katy Perry news, the pixie-cutted cutie is laughing over recent reports that she and actor Ryan Phillippe are dating.

After the rumors went viral, Phillippe responded with a Tweet, "I AM NOT DATING KATY PERRY. BARELY KNOW HER. PLEASE STOP FLYING HELICOPTERS OVER MY HOUSE. SHE IS NOT HERE." Then yesterday, Perry responded, "Can u let me out of this basement pls?" She later added, "Hi, nice to meet you, sorry bout that @RyanPhillippe carry on, lol."

Hey, at least they've got a sense of humor about it!