Hollywood is full of dating match ups that are surprising or even bizarre. Even in tinsel town, the dating pool is limited. So a simple search of the web will show all the various mash ups of celebs. Everyone from A-list stars like Brad Pitt and Cameron Diaz to new talent such as Alex Pettyfer can be connected with many different stars and starlets. Feuds have been waged and friendships ended when an ex became the new beau for someone else. This countdown shares the top 10 celebrity friendship dating pairs, both present and past. The list starts with Victoria Justice, Vanessa Hudgens, and Josh Hutcherson. Dating all the way back to 2008, Josh was linked to both of the Disney channel stars. Taylor Swift and Katy Perry have been feuding ever since Mayer started dating the latter in 2012. Songs have even been penned about the break up and the feud between the beauties. Then, we move on to friends Emma Roberts and Dianna Agron and their mutual ex Alex Pettyfer. These three are known for pairing up with co-stars. Both pairings ended shortly after the movies were released. Next up is the other famous Taylor dater, Mr. Lautner. Along with Taylor Swift, T Laut has been linked with many Hollywood starlets. He makes this list with his Twilight co-star Jamie Bower Campell and their shared ex Lily Collins. Although the two haven’t let their ex come between them. Of course, Ms. Swift makes another stop on our countdown at number five. This time alongside Twilight star Ashley Greene and singer Joe Jonas. The breakup of Swift and Jonas was media fodder after the latter allegedly ended their relationship with a 27-second-long phone call. Greene and Jonas dating was a blow to Swift. Moving on, we take a look at some famous and classic pairings from our recent Hollywood past. First up in this arena are Gwyneth Paltrow, Brad Pitt, and Ben Affleck. Paltrow was famously linked to both of these Hollywood hunks for long stretches before their relationships ended. Following them at 7 is Sandra Bullock and her two ex’s Ryan Gosling and Matthew McConaughey. Sandy has been known for a varied array of suitors. The Texan McConaughey and youngster Gosling are two of the men on her dating roster. Another notorious dater enters the list number 8. Justin Bieber has dated many young starlets in Hollywood including half-sisters Kendall Jenner and Kourtney Kardashian. Bieber was seen up close and personal with Kourtney after apparently confirming a causal relationship with Kendall. Our number 9 entry on the countdown is not a trio. Rather we have the foursome of Cameron Diaz, Kate Hudson, Justin Timberlake, and Alex Rodriguez. Both Cameron and Kate were linked with Justin and A-Rod. From rebounds, rumors, and cat fights, this quad provided a lot of hot gossip. There was a lot of bad blood between the two blondes thanks to their dating choices. But the hatchet seems to be buried now and not in one another’s backs. Our last entry of our top 10 is another match up with Justin Bieber and Kendall Jenner. This time Selena Gomez is in the mix. Bieber and Gomez had what seemed to be a serious relationship for three years. After breaking up, the two have caused their fair share of drama. Everything from using Instagram to make the other jealous to accusing one another of infidelity, the drama between Selena and Justin remains fresh years after their break up. This list will continue to grow and repeated names will appear as the Hollywood pool continues to shrink.