One of the biggest hits of 50 Cent's music career is the song "Best Friend," which is ironic considering that 50 Cent is notorious for having more enemies than friends in the music industry. While his career proved to be full of longevity thanks to hit record and hit record, plus multiple streams of income in additional business ventures like producing, movies, and vodka distribution (just to name a few), a big reason why 50 Cent's name cannot stay out of our mouths is that he can't help but keep beefing with just about everyone in the entertainment industry.

For crying out loud, his very first single - "How to Rob" - was all about him having beefs and wanting to rob everyone from Mariah Carey to Will Smith. Granted, that song was all in good fun and practically a parody, but it only highlights how 50 entered the industry criticizing famous people and nearly three decades later, he is not slowing down anytime soon. To his credit, he has managed to maintain quite a few friendships in this business, but there are enough beefs that we cannot talk about one without the other.

18 Rival: Vivica A. Fox

50 Cent actually used to date Vivica A. Fox several years ago, but considering how both parties have criticized each other since breaking up, it is safe to say that they did not end on good terms. Granted, years after the fact, Fox guest-starred on his 50 Central show, which suggests the heat has eased down in recent memory at least just a bit.

Related: 10 Women 50 Cent Dated (And 10 Who'd Say No)

17 Rival: The Game

Early on in both of their careers, The Game and 50 Cent were good friends. So much so that the latter wrote songs on the former's debut album. However, their friendship derailed to the point that they had a well-documented shootout against each other. 10 years later, their relationship is still fractured.

16 Friend: Rotimi

The two have showcased chemistry on the show Power - where they play frenemies/partners Dre and Kanan - and in music, as 50 featured on one of Rotimi's most popular songs, "Lotto." It looked like a beef was brewing last year where 50 accused him of owing him money, but Rotimi clarified to Kristine Leahy on Fair Game that it wasn't real beef; all in good fun between friends.

15 Rival: Oprah

50 Cent has said some nasty things about Oprah over the years. In more recent months, he took to Instagram (h/t Chicago Tribune) accusing her of only "going after black men" in the media without applying the same level of criticisms to people who are not men or women of color.

14 Friend: Pop Smoke

This is the only friendly name on the list who is no longer with us, as the up and coming rapper was murdered in his home earlier this year during a home invasion. As a friend and supporter of his work, 50 Cent agreed to executive produce Pop Smoke's final and posthumous studio album that he was working on before he died.

13 Rival: Gayle King

With Gayle King being Oprah Winfrey's best friend, it should come as no surprise that she did not take kindly to any of the negative comments which 50 has said about her pal. In his new book, Hustle Harder, Hustle Smarter, 50 details how King once actually confronted him in person about his comments directed at Oprah.

12 Friend: Chris Brown

50 Cent has made some playful comments at Chris Brown in the past, mostly making fun of the singer dying his hair, but it's all out of playfulness. 50 is practically an older brother figure to Brown, who he has frequently collaborated with on songs like "No Romeo, No Juliet" and "I'm The Man" in addition to hanging out.

11 Rival: Lloyd Banks

Lloyd Banks was once a member of 50 Cent's gangster music troupe G-Unit, but when 50 fell out with the entire group, he also fell out with Banks. 50 has admitted in the past that he is no longer on speaking terms and he even went as far as to diss him and past G-Unit members last summer. So much for any hopes of a reunion tour.

10 Friend: Lil Wayne

While a lot of rivals on this list used to be friends of 50 Cent, this is a rare case of a rival becoming a friend. The two had minor beef years back following an interview with Funkmaster Flex where 50 called Lil Wayne a "whore" who would do business with "anyone," but years after, they were able to make peace and become friends.

Related: 16 Little Known Facts About Lil Wayne's Rise To Fame

9 Rival: Kanye West

At the height of 50's fame, Kanye was on the rise. West's new fame was solidified was when his Graduation album sold more sales than 50's Curtis album when 50 was the top selling rapper at the time. 50 might still be salty about losing that battle, since he roasts Kanye on social media whenever he gets the chance.