Last month, Kaley Cuoco dyed parts of her hair pastel pink. The "Big Bang Theory" star loved her understated yet quirky look. 

However, Cuoco-Sweeting seemed to have wanted an even bolder hairstyle. Just over the weekend, Kaley's hair was a bit more reminiscent of a carnival favorite. 

On Saturday, the 29-year-old actress debuted her cotton candy-like hair on Instagram. She captioned the photo, "Fresh coat of paint," and tagged her Andy LeCompte Salon colorist. 

Kaley Cuoco even shared a snap with her new hubby, Ryan Sweeting. Celebrating Memorial Day weekend, she captioned the photo, "Lovely memorial weekend spent with friends and family." 

Fans might have thought that Kaley would stop there, knowing that she still had to keep up with her character Penny's look for "The Big Bang Theory." 

But the star pushed envelopes even further. On Monday, the star posted yet another Instagram photo with pink eyebrows. The snap was a behind the scene photo for a Mane Addicts shoot. 

Madonna also recently dyed some parts of her hair pink. But her daughter, Lourdes Leon, is also making headlines for her hair hue. 

Lourdes is taking on the granny hair trend along with other celebs like Zosia Mamet and Hilary Duff with her silver and pink ombre. Lourdes Leon first showed off her dove gray locks in New York City on May 19. 

Ke$ha was probably one of the most daring celebrities to take on the hair dye trend. The "Timber" singer showed off neon green hair that had a tinge of yellow. 

The singer has previously dyed her hair all kinds of colors - she's probably dyed her hair every color possible from the rainbow. Although unconventional hair color is pretty much expected from kooky Ke$ha, this one probably takes the cake. 

The "Your Love Is My Drug" singer first boasted of her new do on May 15. She posted a series of photos where her "slimey" hue was catching most of the attention.