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Buckle Up  - 2015 saw a slew of celebs get served — with legal docs, that is. From Bill Cosby's ongoing sexual assault scandal to Charlie Sheen and Nick Gordon's alleged funny-business with the ladies' in their lives, here are the top celeb lawsuits of the year. (Photos from left: HRC/WENN, Jason Merritt/Getty Images, Michael Carpenter/WENN)

Photo By Photos from left: HRC/WENN

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Pharrell, Robin Thicke and T.I. vs. Marvin Gaye's Estate  - One of the biggest and longest-running lawsuits of 2015 was arguably the fight between the artists behind the hit "Blurred Lines" (Pharrell, Robin Thicke and T.I.) and the Marvin Gaye estate. After the family of the late soul legend sued the trio for ripping off Gaye's 1997 classic "Got to Give It Up," a jury awarded the family $7.4 million in the copyright trial.(Photo: Larry Busacca/Getty Images for NARAS)

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Taylor Swift vs. Jesse Graham  - Taylor Swift had a massive year in music, thanks largely to her smash first single, "Shake It Off." However, the mega hit ended up landing the singer a place in court with an R&B singer by the name of Jesse Graham, claiming she lifted lines from his song "Haters Gone Hate." Suing her for $42 million, Graham said that Swift used lines from his song in her 2014 hit and made bank off of his back. Long story short, he lost the case and Taylor kept her money.(Photo: Steve Exum/Getty Images for TAS)

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Justin Bieber and Usher vs. De Rico  - Usher and his protegé Justin Bieber were slapped with a lawsuit back in 2013 by singer Devin Copland — stage name De Rico — who claimed that Justin ripped off one of his songs for his hit "Somebody to Love." After the judge concluded that the songs' choruses were definitely similar, a court ruled that the pair will have to face a $10 million lawsuit alleging copyright violation.(Photo: Frazer Harrison/Getty Images)

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Suge Knight, Ice Cube and Dr. Dre vs. the Family of Terry Carter  - Even years after their peak NWA days, Dr. Dre and Ice Cube still got tied up in Suge Knight's mess. In the midst of Knight fighting murder charges for running over Terry Carter with a truck in January 2015, Carter's widow filed a wrongful-death lawsuit against NWA, Knight, Cle "Bone" Slean and Universal Pictures. (Photos from left: Las Vegas Metropolitan Police Department via Getty Images, Frazer Harrison/Getty Images, Kevin Winter/Getty Images)

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Nick Gordon  - Nick Gordon was in the middle of a $10-million lawsuit over the death of his girlfriend, Bobbi Kristina Brown. Gordon also already faces a wrongful-death lawsuit from Brown's conservator, acting on behalf of the Brown and Houston families, alleging that he gave Bobbi Kristina a "toxic cocktail" and physically abused her before placing her face down in her bathtub.(Photo: Michael Carpenter/WENN)

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Birdman vs. Lil Wayne  - At the top of the year, Lil Wayne filed a suit against Birdman and Cash Money for $51 million claiming that the company failed to properly account and pay royalties and profits to Young Money LLC. The "Lollipop" MC took things even further, claiming that Nicki Minaj and Drake were also victims of Birdman and Cash Money's schemes.(Photo: Neilson Barnard/Getty Images for BMI)

Photo By Neilson Barnard/Getty Images for BMI

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Lee Daniels vs. Sean Penn  -   Lee Daniels was served with legal papers from Oscar-winning actor Sean Penn after he compared him to Terrence Howard in the context of domestic violence. The Empire creator said that Howard shouldn't be viewed as a "wife beater" when other celebrities are given a pass. Penn, after hearing Daniels's words, tapped federal prosecutor Mathew Rosengart to take the matter higher, filing a defamation lawsuit.(Photos from left: Joe Scarnici/Getty Images, Frederick M. Brown/Getty Images)

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Bill Cosby  - Arguably the biggest celebrity scandal of the year has to be Bill Cosby's sexual-assault lawsuit involving more than 50 women to date. Cosby has been the subject of several lawsuits over the past few years. (Photo: HRC/WENN)

Photo By Photo: HRC/WENN

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Kylie and Kendall Jenner vs. Island Company  - The Jenner sisters, along with the PacSun brand, were slapped with a lawsuit in October 2015 by Island Company, a resort lifestyle retailer in West Palm Beach, Florida, over allegedly stealing Island's trademarked logo. The company has used their trademark phrase, "Quit your job. Buy a ticket. Get a tan. Fall in love. Never return," since 2005 and want the Jenners and PacSun to take it off of their clothing.(Photos from left: Vivien Killilea/Getty Images for Haute Living, Pacsun)

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Jay Z and Timbaland  - After being slapped with a copyright infringement lawsuit over their collaborative hit "Big Pimpin'," Jay Z and Timbaland walked away victorious in October 2015. They were first sued by the relative of a deceased Egyptian composer Baligh Hamdi, but the judge ruled that Osama Fahmy, Hamdi's nephew, "lacked standing to pursue his claim." The MCs testified during a week-long trial in Los Angeles, denying any unlawful use of the track.(Photos from left: Jamie McCarthy/Getty Images for Roc Nation Sports,  Larry Busacca/Getty Images for Samsung)

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Flavor Flav  - Flavor Flav is off the hook for speeding while on his way to his mom's funeral as he pleaded not guilty to charges stemming from the traffic stop. The charges included driving with a suspended license, a speeding violation and two misdemeanors for driving without a license. The MC was released without bail.(Photo: Ethan Miller/Getty Images)

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Terrence Howard vs. Ex-Wife Michelle Ghent  - Empire star Terrence Howard was slapped with a lawsuit in July by his ex-wife, Michelle Ghent, who claims he beat her within an inch of her life. She claims it all went down at a rental house in Costa Rica in 2013 after they began arguing and he grabbed her by her neck. She claims that he pushed her against a bathroom wall and began choking her, threatening to kill her.(Photo: Pascal Le Segretain/Getty Images

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50 Cent vs. Larry Johnson  - 50 Cent may have stolen the concept for Power if Larry Johnson's word holds any truth. Johnson, who wrote the manuscript to Tribulation of a Ghetto Kid, shopped it to Nikki Turner, who works for 50 at G-Unit books. According to him, the book was published at a different company, but Nikki shared his manuscript with the rapper without him knowing. Now Johnson wants to sue 50 for $200 million.(Photo: Paul Morigi/Getty Images for Tuesday's Children)

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Charlie Sheen  - After Charlie Sheen came forward admitting that he has been living with HIV for years, at least six women have come forward with plans to sue the actor for intentional infliction of emotional distress, fraud, sexual battery and a slew of other charges. The women claim that they had unprotected sex with Sheen, and he didn't disclose his HIV status with them before or after the act.(Photo: Jason Merritt/Getty Images)