Did Iggy Azalea Just Break Music's Biggest Unspoken Rule in New Tweets?

It hasn't been a fantastic couple of weeks for Iggy Azalea. The Aussie had to cancel her Pittsburgh Pride performance earlier this month after some of her old homophobic tweets resurfaced. Then, she canceled her entire Great Escape Tour and scrapped six months of work on her new album. The last new track from Iggy was her collaboration with Britney Spears, "Pretty Girls," but now she's even tossing some snide remarks to that. And, through osmosis, BritBrit herself.

When a fan asked Iggy on Twitter why "Pretty Girls" "flopped" on the charts, she tweeted this response:

By throwing these words into the world, is Iggy suggesting that she was all for some good 'ole promo, but Britney didn't want to make the rounds? It smells like it. The B Army is prepping their pitchforks as we speak.

But then it gets uglier. According to TMZ, Iggy also said, "My comment is factual, it applies to any song. I dont have to suck the womans a**hole 24/7 to be her friend, do i? bye girls."

Here's the tea, guys. There's an unspoken rule in pop culture that you cannot ever, under any circumstances, speak ill of the following people:

— Britney Spears

— Beyoncé

Take a second and think about the last negative article you've read about these women. THEY DON'T EXIST. Need we remind you of this very factual Saturday Night Live PSA?

Or this enlightening 12-minute video of people praising Britney?

Or even this investigative report by BuzzFeed praising Queen B for doing the most arbitrary things? Basically, if we could rewrite the Ten Commandments, "Thou shalt not insult Britney Spears or Beyoncé" would 100 percent make the final cut.

For a woman already not well-liked by basically everyone, this makes us very nervous for Iggy. Do you think she was shading Britney? Let us know.