Katy Perry added the green hue after her latest split from John Mayer.
"I've wanted to go slime green for a long time," she told E! in March. "It's springtime, and I think it's time to freshen up my look," she said.
"I'm really excited about slime green, but I hope my hair doesn't fall out."
Sadly it looks like green is on the way out, judging from this greenish-brown style she rocked earlier this month in London.
She does go back to the bright green during her shows.
And rainbow strands.
But she's really known for her jet-black hair.
Even though she's naturally a blonde. Really!
Other times, it's all about the "California Gurls" blue.
Or the blue and purple.
Even blue and black.
We'd kill to have her pink style.
Show us how you do that roll, Katy.
Just whatever you do, don't stop giving us some major hue inspiration, Katy. We wouldn't know what to do next if it wasn't for you.
And you'll see personalized content just for you whenever you click the My Feed .
SheKnows is making some changes!