Kim Kardashian Vs. Bieber Fans And More Great Feuds Of 2010

No year would be complete without celebrities getting into some (mostly verbal) fisticuffs with one another. And 2010 saw reality stars battling it out, a pop star's fans going after a socialite, two musicians blabbing about their love life, two mega pop stars fighting about art and a resurgence of one 2009's epic conflicts. All in all, it was an entertaining year to look on from the sidelines.

Kim Kardashian vs. Justin Bieber's Fans
In April, 16-year-old Justin Bieber announced he'd love to date 30-year-old Kim Kardashian. In May weeks, when she tweeted a photo of the pair hanging out, Bieber fans were sending the reality starlet death threats. While she hoped that the threats were in "good fun," that controversy would soon give way to Bill O'Reilly critiquing the pair's playful Elle photo shoot. Kim later heard fighting words from Chelsea Handler in the battle for the affections of the pop star. Relax, ladies, there's enough Bieber for everyone.

Katy Perry vs. Lady Gaga
Lady Gaga used loads of religious symbolism in her artsy clip for her summer jam, "Alejandro," and one very famous daughter of a preacher, Katy Perry, didn't seem happy about the video. Shortly after the video premiere, Perry tweeted that "blasphemy as entertainment is as cheap as a comedian telling a fart joke," without actually naming Gaga or her song. Gaga never responded, but her bestie Perez Hilton said he was "surprised" that Katy would feel that way. Perry later said the tweet wasn't about Gaga, but it was a response to a number of things she had been seeing in pop culture. And by the end of the year, Katy was praising Gaga in Maxim.

Taylor Swift vs. Kanye West 2.0
We sort of hope 2011 will be the year we can stop talking about the whole Taylor vs. Kanye thing. Sure, Kanye West and Taylor Swift spent most of 2010 not talking about the 2009 VMA incident and instead concentrated on their fourth quarter releases. But everyone else kept talking about it, including Eminem. By the time the VMAs came around again in 2010, Kanye had publicly apologized to the singer on Twitter, and she took the stage to perform her new ballad, "Innocent," after airing a clip of the bum rush. Then Kanye closed the show with the self-effacing "Runaway." Now that they got it off their chest, can they put it all behind them at last? Can we?

Jersey Shore Cast vs. Angelina
After leaving the Seaside Heights house in a huff early on in season one, Angelina came back for more "Jersey Shore" drama in Miami in season two. Her housemates promptly confronted for talking smack about them in their time apart, but Snooki laid it all out there: Apologize and we can be fine. Angelina complied, and all was cool until she hooked up with Vinny. Snooki, who had hooked up with Vinny, was not happy about that. The Sitch got involved, called Angelina a "dirty hamster," and the "Kim Kardashian of Staten Island" was soon out of the house again. This time, we think, for good.

John Mayer vs. Jessica Simpson
Sometimes, when two people break up, one of them will talk about their relationship to everyone who will listen. In this case, John blabbed, and to Playboy, no less. Calling his ex "sexual napalm" led to the greatest publicity Simpson could ever have expected. While Mayer apologized for his comments, she went on every talk show to promote her reality show, "The Price of Beauty," while also managing to announce that she didn't really accept John's apology and laughing that he gave away her game.

What was your favorite celebrity feud of 2010? Share it in the comments!