Well, damn. Weren't these girls just besties? If we know anything about Iggy Azalea, we know that she doesn't hold her tongue for anyone. Apparently, Britney Spears is the next person to be at the center of her bluntly honest opinion after their collaboration "Pretty Girls" flopped.

On Monday (June 29), the rapper began venting her frustrations on Twitter and responded to a fan's tweet regarding the not-so-popular single. "Even if PG flopped a little bit still getting a lot of views on YT and it's the summer anthem of 2015, so whatever we love you," tweeted the fan.

Of course, Iggy chimed in and gave her two cents. Lets just say, the "Fancy" rhymer ranks high on the charts in terms of throwing shade. "It's difficult to send a song up the charts wiithout additional promo and tv performances etc. unfortutunately im just featured...," Iggy wrote.

Pop Zone caught wind of Iggy's tweet and shared the link to their story regarding her take on "Pretty Girls." Once again, Iggy responded and punctuated her point with the following tweet: "@ThePopZone my comment is factual, it applies to any song. I dont have to suck the womans asshole 24/7 to be her friend, do i? bye girls."

By "woman's asshole," she's obviously referring to Britney, who popped up on the scene with her roof missing and clapped back at the Aussie star with a tweet of her own. "Can't wait to get back to Vegas. So thankful I have shows for the rest of the year to look forward to...#YouWantAPieceOf Me."

Can't we all just get along? Check out the tweets below.

What’s Beef? 10 Hip-Hop Twitter Feuds