Top 10 Celebrity Feuds

While viewers flocked to the cinema to see Optimus Prime and Megatron fight it out on the big screen in 2009’s "Transformers: Revenge of the Fallen", they may or may not have known there was also a feud going on behind the scenes. Megan Fox reportedly compared director Michael Bay – with whom she had worked with on the 1st “Transformers” – to Hitler and Napoleon in interviews and stated that he was hopelessly awkward. Bay also tossed out a few insults of his own, saying that Fox had a lot of growing up to do. The result was Fox’s character being written out of the third installment. While the duo supposedly patched things up while working on 2014’s “Teenage Mutant Ninja Turtles,” the feud did last for several years – with Bay saying he knew the comments were just Megan being Megan.

#9: Jon Gosselin vs. Kate Gosselin

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Nothing to make a few celebs throw down the gauntlet quite like a public scandal and divorce. The former reality TV couple, who starred with their children in “Jon and Kate Plus Eight,” have been firing shots back and forth at one another since at least 2009 - when they announced their separation on the show. The bullets include accusations of womanizing and overspending on Jon’s part, and accusations of inflexible and demanding behavior along with poor parenting on Kate’s. In 2015, a custody battle over one of the former couple’s children added a few more layers to this battle.

Two guys in a bar fighting over a woman; while this may seem like a typical Saturday night in many nightclubs, when it involves two stars, it’s a feud too juicy to ignore. While there is much speculation about how this feud started, one being that Justin Bieber taunted Orlando Bloom with a comment implying that he’d had hooked up with Bloom’s wife in 2012, footage appears to show that Orlando did throw a punch at Bieber in Ibiza. To add fuel to the fire, Bloom was later linked to Justin’s on and off again girlfriend Selena Gomez.

#7: Anthony Bourdain vs. Paula Deen

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If you can’t take the heat, stay out of the kitchen. Our number seven pick is a food fight that can’t be cleaned up with a rag or mop. This feud between chefs Anthony Bourdain and Paula Deen goes back a few years, and includes the former accusing the latter of being the most dangerous person to America because of her “unhealthy” cooking and later made a joke of her diabetes diagnosis. However, not one to sit back, Paula blasted Anthony, saying he needed to get a life and hinted that his high priced foods were pretentious and inconsiderate of the average American’s budget.

When you go to a hockey game, you expect to see a fight or two, but these two hockey stars took their gloves off outside of the rink as well. When Dallas Stars player Sean Avery discovered that his ex-girlfriend Elisha Cuthbert was dating someone from another team, Calgary Flames’ Dion Phaneuf, he made a very public and rude statement about other hockey players going after his ex-girlfriends. The comment got Avery suspended from the NHL, while Phaneuf later married Cuthbert.

Happy homemakers these two are not, at least on the topic of one another. When Gwyneth Paltrow attempted a foray into the lifestyle world with Goop, Martha Stewart was less than pleasant about it. She said in an interview that Paltrow should just be quiet... and not try “to be Martha Stewart.” Gwyneth responded to the diss by stating she was psyched that Martha saw her as competition and joked about Stewart’s comments. The two then took things another step further when Stewart posted a recipe for “Conscious Coupling” pie – likely to be a jab at Paltrow’s “conscious uncoupling” with ex-husband Chris Martin – to which Paltrow responded with a recipe that appears to target Martha’s former status as an inmate: a Jailbird Cake!

These two Hollywood heavyweights are the second set of feuding actors and directors to appear on our list. During an interview with Vanity Fair about “Knocked Up,” Katherine Heigl made some comments about the way in which the director, Judd Apatow, portrayed women in the film – i.e. “it’s a little sexist.” Apatow did not respond immediately, but in a later interview, along with actor Seth Rogen, responded with comments about Katherine’s latest movie role in “The Ugly Truth” and how it seemed to show women in an even worse manner.

This is feud that may or may not involve tiger blood. Charlie Sheen has been in and out of the public eye for his antics throughout the years, and in 2011, they ultimately led to his firing from the sitcom “Two and a Half Men”. Sheen basically called the series’ creator Chuck Lorre a narcissist and then in 2015, he threatened him following the sitcom’s finale. Lorre fired back with comments about Charlie’s drug use, hiring of hookers, and other erratic behavior. While Lorre reportedly wants to put it all behind them these days, Sheen doesn’t seem to share the sentiment.

#2: Donald Trump vs. Rosie O’Donnell

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Our number two feud on the list is a battle between two individuals that are no stranger to making waves. After Donald Trump allowed Miss USA Tara Conner to keep her crown following her confession of drug use, Rosie O’Donnell called Trump’s morality into question and insulted his hair. She also called him a snake oil salesman. Not one to let a slam slide, Trump fired back by stating Rosie had a low IQ and was an unattractive loser. O’Donnell has often voiced strong opinions about the actions of others, including a verbal sparring with Tom Selleck over gun control starting in 1999. But it’s her long-standing feud with The Donald that keeps popping up in the media. Before we reveal our top pick, here are a few honorable mentions. - Bristol Palin vs. Keith Olbermann - Bette Davis vs. Joan Crawford - Kylie Jenner vs. Blac Chyna - Paris Hilton vs. Nicole Richie

#1: Jay Leno vs. David Letterman

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This pick that fought its way to our number one slot was a feud dubbed The Late Night Wars. While the two men were originally friends, it seems the bad blood started to flow after Jay Leno was given the job of hosting “The Tonight Show” following Johnny Caron’s retirement. Not only did David Letterman desire the slot, but most people also expected him to get it. So instead, Letterman switched networks from NBC to CBS to host the “Late Show.” Thus began the War for Late Night, as he and Leno began to battle for success among viewers during their time slot over the next two decades or so. At one point, Letterman even called Leno insecure, and when he retired from his hosting spot, Leno refused the invitation to the send off the show. Do you agree with our list? Which celeb feud is your favorite? For more heavy hitting Top 10s published daily, be sure to subscribe to WatchMojo.com.