It's hard to believe that just six years ago, Kim Kardashian was a total unknown. But since then, she's become just as known for all the guys she's dated as she has for her empire.

She first rose to prominence through a sex tape with Ray J and since then, there's been nary a day that's gone by without a story on someone Kim is dating, rumored to be dating, slept with or rumored to have slept with. In honor of her 32nd birthday, we take a look back at the many, many men Kim has been with (sometimes allegedly) through the years.

1. T.J. Jackson

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Even in high school, Kim knew how to get attention with her relationships. She dated T.J., the nephew of the late King of Pop Michael Jackson, from 1994-1998. But when high school ended, so did their relationship shortly after.

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2. Damon Thomas

Kim sure found a way to keep a marriage under wraps. She was wed to music producer Damon in 2000, but they split in 2004. When their divorce papers were dug up years later, it revealed Kim's claims that he physically abused her. Damon denied the allegations and called her a "fame-loving liar."

3. Nick Lachey

Somewhere after Jessica Simpson and before Vanessa Minnillo, Kim and Nick casually dated for six months in 2006. The relationship naturally fizzled and Nick began dating Vanessa shortly after.

4. Ray J

The sex tape that brought Kim to infamous prominence was made with Ray J while they were dating in 2006. It was released in 2007 and Kim ultimately sued distributor Vivid Entertainment before settling for $5 million. As for Ray J, his 15 minutes have long ended and he occasionally Tweet-bashes Kim to keep his name in the headlines.

5. Nick Cannon

Apparently Nick likes his divas, but not his sex tapes. The couple dated for a few months in early 2007, but split shortly after her sex tape with Ray J was released. Nick then went on to date Mariah Carey and married her in 2008.

6. Reggie Bush

By this time, we had learned that Kim was really, really good at moving on from relationships. Shortly after getting dumped by Nick, she fell into the arms of NFL player Reggie Bush in 2007. This was also her first relationship chronicled in all its trainwreck glory on Keeping Up With the Kardashians. We thought that Kim had finally found true love, but the couple fell into an on-again off-again pattern before splitting for good in March 2010.

7. Miles Austin

Shortly after splitting from Reggie, Kim switched teams. Not like that -- she moved on to Dallas Cowboys player Miles in July 2010, but they quickly called it quits after just two months of dating.

8. Michael Copon

In addition to her actual relationships, there's always been quite a rumor mill surrounding Kim in the love department. One Tree Star Michael appeared on Kim's reality show Kourtney & Kim Take New York and there were rumors of casual dating, but nothing really came from those stories.

9. Gabriel Aubry

After Halle Berry kicked him to the curb, Gabriel was spotted out and about on a few occasions with Kim. Nothing seemed to happen though because Kim met her most infamous relationship man just a month later.

10. Kris Humphries

The 72 day marriage that nearly killed Kim's career. They began dating in December 2010 and Kris proposed to her, naturally on camera, in May 2011. But after racking up $18 million from her possibly fake wedding in August of that year, they split in November and Kim faced tremendous backlash.

11. Justin Bieber

Clearly, Kim isn't going to date Biebs because, well, he looks like he's 12 and he's not a rapper or an athlete. But when Kim made a joking tweet about dating Justin, his Beliebers responded with death threats! Kim quickly clarified that the two are just friends and will always remain platonic.

12. Bow Wow

Kim has never spoken publicly about it, but Bow Wow confirmed that he briefly dated Kim prior to her meeting Kris.

13. Cristiano Ronaldo

When Kim travels to Spain, leave it to her to bag the country's sex icon. The two hooked up in April 2010, but nothing seemed to happen after and Kim has remained mum on the subject.

14. John Mayer

We KNOW Kim can do better than this. She went on a few dates with the musician in October 2010 and some media outlets reported that they were an item, but it appeared to be just a brief hook-up in the end.

15. Kanye West

What once appeared to be a publicity romance between Hollywood's two ultimate self-promoters seems to be the real deal. Several of Kanye's recent songs are admittedly about Kim, the pair have gone house hunting together and there are even reports that a marriage proposal will be happening very, very soon!

Who's your favorite Kim Kardashian lover?

Photos courtesy of Getty Images, Radar Online and Christian Post