Vanessa Hudgens is feeling blue these days.
Just a few weeks after going blonde, the actress has changed her hair color once again, posting an Instagram photo of herself sort of resembling a mermaid.
"She would be half a planet away, floating in a turquoise sea, dancing by moonlight to flamenco guitar," Hudgens wrote as a caption, quoting White Oleander.
Compare the star's freshly colored 'do with her natural locks and vote below:
Vanessa Hudgens is feeling blue at the moment. React to her blue hair and compare it to her natural color now. View Poll »
For a good cause, Hudgens actually dressed like a mermaid back in February, as she's part of The Mermaid Project, an organization that works to preserve beaches and oceans.
Click through many other unusual celebrity hairstyles now: