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Cardi B vs Nicki Minaj - This has been a rumored feud for a while now, but things came to a head at the Harper's Bazaar Fashion Week party. Cardi B threw a shoe at Nicki Minaj and was escorted out by security.

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Cardi B vs Nicki Minaj - It appears that Cardi B was accusing Minaj of insulting her parenting techniques. She wrote an inflammatory Instagram post after the fact explaining her actions.

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Nicki Minaj vs Remy Ma - Cardi B is not the only rapper to have beef with Nicki Minaj. Remy Ma is yet another star that has been battling it out with the hip-hop artist.

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Nicki Minaj vs Remy Ma - Minaj, who has had beef with Ma for years and taken jabs at her in songs, finally got a rebuttal last year. In 2017, Ma dropped a diss track aimed at Minaj called 'Shether,' which ended her seven-year winning streak for BET's Best Female Hip-Hop Artist award.

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Cardi B vs Azealia Banks - Two other rappers who also cannot seem to get along are these two New Yorkers. Banks called out Cardi for being a "poor man's Nicki Minaj" last year.

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Cardi B vs Azealia Banks - Most recently Banks referred to her as a "caricature of black woman." Cardi responded via Instagram saying "You busy trying to be a voice of reason...when you can’t even reason with yourself."

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Kelly Osbourne vs Christina Aguilera - These two ladies are also known to fight dirty and fat-shame one another.

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Kelly Osbourne vs Christina Aguilera - Osbourne has called Aguilera's music "crap," referred to the singer as a "cow," and just about everything else in-between.

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Britney Spears vs Christina Aguilera - But Aguilera is no stranger to feuds and haters. Perhaps her most infamous rivalry is the one she had with fellow pop artist Britney Spears.

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Britney Spears vs Christina Aguilera - On an episode of 'Carpool Karaoke,' Aguilera even revealed that she and Spears were caught in a bit of a love triangle during their 'Mickey Mouse Club' days with fellow former castmate Justin Timberlake.

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Jennifer Lopez vs Mariah Carey - The bad blood between these two divas dates all the way back to the early 2000s, when Carey asked during an interview about her thoughts on Lopez, and Carey replied "I don't know her."

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Jennifer Lopez and Mariah Carey - On an episode of 'The Wendy Williams Show,' J.Lo got her revenge, calling the songbird "forgetful."

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Demi Lovato vs Mariah Carey - Someone else who can't stand the Queen of Christmas? Demi Lovato. She took to social media in 2016 to express her not-so-nice thoughts on the singer.

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Demi Lovato vs Mariah Carey - "Mariah is a legend and is so talented but consistently disses people...It's nasty the way she treats Jennifer [Lopez]...[Mariah] is mean for no reason. Extremely talented? Yes. Superhuman? Possibly. Unnecessarily rude? Absolutely.”

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Mariah Carey vs Nicki Minaj - And the drama with Carey continues! She even had problems with fellow judge Nicki Minaj when the two appeared on season 12 of 'American Idol.'

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Mariah Carey vs Nicki Minaj - Hilarious footage of the two musicians snapping and making digs at each other continues to exist online. Carey would later compare her stint on 'American Idol' to "going to work everyday in hell with Satan."

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Joan Rivers vs Oprah Winfrey - During a 1985 interview, Winfrey was shamed on her first national television appearance by the late television host for having gained excess weight.

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Joan Rivers vs Oprah Winfrey - According to a source who spoke with the National Enquirer, Joan loathed Winfrey, calling her a fake and said that her only real talent was "exploiting people's suffering and emotions and turning them into TV ratings."

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Sinéad O'Connor vs Miley Cyrus - It started with an open letter O'Connor wrote to the young star where she claimed that Cyrus was being prostituted by the music industry.

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Sinéad O'Connor vs Miley Cyrus - In response, Cyrus cruelly and callously mocked the Irish musician's mental illness on Twitter in 2013.

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Paris Hilton vs Nicole Richie - The blonde best friends were once inseparable, having even starred together on the reality show 'The Simple Life.' But there came a moment in time when the two stars just could not stand each other.

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Paris Hilton vs Nicole Richie - Their friendship quickly took a turn and the show was cancelled due to the girls' unfortunate falling out. Nowadays, while not as close as they once were, it seems the girls have forgotten their past squabble. Yay!

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Betty White vs Bea Arthur - You might be wondering who in their right mind would dare have a dispute with sweet, old Betty White?

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Betty White vs Bea Arthur - Well, turns out her 'Golden Girls' costar did. Bea Arthur was allegedly a real mean girl on set, with White believing that it was her positive attitude that irked the actress the most.

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Kim Cattrall vs Sarah Jessica Parker - Other costars who played best friends but secretly despised each other? These two 'Sex and the City' stars. When Parker sent her condolences after the death of Cattrall's brother in early 2018, Cattrall was having none of it.

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Kim Cattrall vs Sarah Jessica Parker - A catty Cattrall responded: "You are not my family. You are not my friend...stop exploiting our tragedy in order to restore your 'nice girl' persona." Ouch!

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Naya Rivera vs Lea Michele - In her 2016 memoir 'Sorry Not Sorry', Rivera revealed that by the time the former costars were filming season six of 'Glee,' the two were no longer on speaking terms.

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Naya Rivera vs Lea Michele - "Lea—didn't like sharing the spotlight," she wrote. "Lea was a lot more sensitive...it seemed like she blamed me for anything and everything that went wrong."

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Taylor Swift vs Kim Kardashian West - In 2016, Kardashian famously exposed Swift for the alleged "snake" she was and shared footage of her husband Kanye West speaking with the singer on the phone about his controversial song 'Famous.'

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Taylor Swift vs Kim Kardashian - In his lyrics, West takes credit for making Swift famous. The footage shared by Kardashian implied that Swift, who was playing the victim when the single dropped, had known about the track all along, even having given her blessing.

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Lindsay Lohan vs America Ferrera - When Lohan was booked to appear on Ferrera's show 'Ugly Betty,' she ended up getting the boot earlier than expected.

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Lindsay Lohan vs America Ferrera - Turns out Lohan caused problems on set, with reports of smoking and a messy dressing room. Other sources say Ferrera was mean to Lohan, didn't like her, and got her kicked off the show after just four episodes (originally meant to be six).

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