By Emily Feimster It's not uncommon for Hollywood to be a hot bed of serial daters. After all, when you're young, rich, and famous, why buy the cow when you can get the milk for free? But for some of our celebrities, they've discovered the power that comes with pairing up. Soon the duo becomes the talk of the town and everyone and their mother begins speculating about how beautiful their children will be. So sit back and grab a cool drink as we take a look at Hollywood's hottest couples!

1. Brad and Angelina
Yes, this humanitarian couple has become so famous that we don't even need to write their last names. Most just lovingly refer to them as Brangelina. Though rumors have circulated that the two are on the mend, pictures show otherwise as they've been spotted looking like quite the cozy family with their four kids in tow.

Quotable Quote: Angelina's brother, James Haven, recently said, "Brad has changed my sister a lot. They have an extraordinary bond. He's great with her and I've never seen a brood like that who are all so supportive of one another. When she feels vulnerable, he has the most incredible strength. I've never seen any sign of tension between them, and if it keeps going the way it's going, they'll be together for life."

2. Tom Cruise and Katie Holmes
We'll be the first to admit that we were a little weirded out when these two got together. I mean, did he really have to jump on Oprah's couch like that? There's no denying, though, that they have quickly become one of entertainment's most intriguing couples. And we don't even have to wait to see how pretty their children will be. We already know!

3. Jay-Z and Beyonce Knowles
Although this couple almost never publicly discusses their relationship, that doesn't keep the rest of the world from wanting to know more about these musical masterminds, who have reportedly been together for almost four years. They were even listed as a Power Couple on Time Magazine's 100's Most Influential People of 2006.

Inside Scoop: During a three-day celebration in St. Martin for Jay's 37th birthday, Beyonce spent a reported $1 million a day.

4. David and Victoria Beckham
He's one of the world's greatest soccer players. She's a former Spice Girl-turned-fashion icon. Together they are considered as famous as British royalty. The two are now set to take over America as he has signed a $250 million contract to play with the LA Galaxy soccer team.

Inside Scoop: Their wedding reception, which had 437 people on staff, was estimated to have cost over $1 million. Photographs showed the happy couple sitting on golden thrones.

5. Nicole Kidman and Keith Urban
Despite their marriage getting off to a tough start with the country singer checking himself into rehab, Nicole strongly stood by her man. In fact, he credited their "strong marriage" with helping him get through his treatment. Now the Australian lovebirds have settled into their new lives together in Nashville, Tennessee.

Quotable Quote: Said Keith, "I waited 39 years before I got married. It means everything to me to be married. Like everybody, I really want to do it only once. I'm very loyal in that respect, and committing to somebody means once that ring is on, I'm gonna stay."

6. Ellen DeGeneres and Portia de Rossi
Who says our couples had to be conventional? Though some might not agree with same-sex coupling, Ellen DeGeneres is unquestionably one of America's most beloved comedians, and she's never looked hotter than with Portia on her arm.

7. Demi Moore and Ashton Kutcher
Most people thought they were being punk'd when they heard that the hunky Ashton was going out with Demi, who is 15 years his senior. However, the couple soon proved their seriousness for each other when they married at a secret Kabbalah ceremony in Los Angeles.

Quotable Quote: Demi has said, "I think it (romance) caught us both by surprise, and particularly him. He was in this real rise of his career just as we met, which, for a young man, is prime opportunity for heavy-duty play."

8. Gwen Stefani and Gavin Rossdale
Ah, we love it when two rockers get together! Gwen met the British singer when he attended a No Doubt concert, which led to a long distance relationship. Eventually the pair married in, not one, but TWO wedding ceremonies! It certainly never hurts to have a back up!

9. Eva Longoria and Tony Parker
When you're one of TV's hottest leading ladies, it's no surprise when you catch the eye of one of the NBA's most eligible bachelors. Despite their seven-year age difference, and 16-inch height difference, the two plan to marry this summer in his native country of France.

Inside Scoop: Though the attractive Frenchman would clearly have no problems picking up the ladies, Eva admitted to Allure Magazine that he had only been with one other woman before her.

10. Will Smith and Jada Pinkett Smith
We certainly couldn't leave out one of Hollywood's more established couples. The pair, who is often known for color coordinating their outfits, has been married since 1997 and still seems to be going strong. Neither seems to be too shy about their private expenditures either.

Quotable Quote: "Will is a very interesting, unique man, and I'll tell you why. He makes love like a woman. He loves to touch, massage and feel."