Never the one to be afraid of rocking outrageous ensembles or dramatic looks, pop star Lady Gaga has once again sparked frenzy with her latest social media post.

Showcasing a vibrant rainbow-style hair, the Bad Romance hitmaker shared a couple of photos, and it is safe to say her fans are in quite a shock.

The American singer had earlier been consistent with flaunting her blonde tresses. But that was until she decided to trade her old Hollywood hairstyle for a dramatic combination of blue and orange locks.

She even shared a glimpse of her brand new look with her fans on Instagram, writing, "JOANNE WORLD TOUR @fredericaspiras hair @sarahtannomakeupmakeup... 3 days #joanneworldtour#Joanne." Considering that her world tour is around the corner, it seems Gaga's freshly-dyed hair is for the upcoming show.

JOANNE WORLD TOUR @fredericaspiras hair @sarahtannomakeup makeup 💄 💎 3 days #joanneworldtour #Joanne

A post shared by xoxo, Gaga (@ladygaga) on

The Poker Face songstress shared a close-up of the rainbow-hued hair and her equally dramatic makeup in another picture. "Late night running through the show in," she captioned the snap, once again following up with tags about her Joanne World Tour.

And fans' reactions were just as extreme as her new style. One Instagram user exclaimed, "Gaga dear, what the f**k".

"Love the lipstick," said another, while a third compared the look with Harley Quinn, a fictional character in the DC Comics.

Rocking fashion statements that seem out-of-the-blue is nothing new for Lady Gaga – fans would remember the outlandish meat dress that the pop star wore to the MTV Video Music Awards in 2010.

And as far as hairstyles and colours are concerned, the singer-turned-actress has never shied away from them either.

Xoxo, Joanne #joanneworldtour #Joanne #ladygaga Late night running through the show in ⏱

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Dishing on her extreme fashion measures, she once told Vogue magazine, "I bleach my eyebrows every day. I like to keep them light. They're more versatile for a beauty look. You can draw [your eyebrows] any way you want when they're bleached."

Apart from dramatic looks, however, Lady Gaga has been in the limelight of late due to subpoena by Dr. Luke's lawyers in the ongoing defamation case against Kesha.