We thought maybe Katy Perry was playing an April Fools' joke when she said she was considering dyeing her hair "slime green", but no! This Instagram popped up tonight and proved otherwise. The caption ...

Well, at least it's not lavender! Katy Perry debuted a new green hair hue on Instagram on Monday, April 7. "Slime green for spring by my bb's @neeenaboo & @brantmayfield at the @mcmillansalon," the ...