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Actress Mayim Bialik, of Big Bang Theory and Blossom fame, has a "problem" with Ariana Grande (even though she's never heard of her).

The Emmy-nominated star took to her blog to air a few frustrations over what we're assuming is the humongous Los Angeles mural promoting the singer's My Everything album since July. 

While criticizing sexually-suggestive billboards she's seen lately, she wrote:

"There is one for Ariana Grande, and I will go ahead and admit I have no idea who she is or what she does. Based on the billboard, she sells lingerie. Or stiletto heels. Or plastic surgery because every woman over 22 wishes she has that body, I’m sure. Why is she in her underwear on this billboard though? And if she has a talent (is she a singer?), then why does she have to sell herself in lingerie? I mean, I know that society is patriarchal and women are expected to be sexy and sexually available no matter what we do in society, but I guess now I need to explain that to my sons?"

The actress also let out her frustrations for recent promos for Masters of Sex, Levi's and Victoria's Secret.

While Bialik's more than free to voice her opinion, we'd like to go on record that if the actress knew a little more about Ariana and her style evolution, the girl traditionally goes more demure than sexy, honoring looks of the past with throwback-inspired floral dressesboots and sweaters

While the "Bang Bang" songbird hasn't responded to the Big Bang star, we're going to add this attack to 2014's other unexpected diss sessions that's included everyone from Linkin Park and Chvrches to Questlove and Lily Allen.