Khloe Kardashian and Lamar Odom out to dinner at Spice Market in NYC on April 21. (FameFlynet)

Whether their love is real or just for the cameras, we love to watch the relationship drama unfold between these dynamic duos, past and present! Who is YOUR favorite showmance couple of all time?

From Jessica Simpson and Nick Lachey‘s Newlyweds marriage, to Kim Kardashian‘s over-the-top wedding to Kris Humphries, celebrities love to broadcast their romances for the world to see! While those unions didn’t last, some of the couples we love to watch on TV are genuinely head-over-heels for each other — Lea Michele and Cory Monteith, anyone? HollywoodLife.com put together a gallery of the hottest Hollywood showmances, including those that fizzled long ago and others that are still going strong. Click through and VOTE for your favorite limelight-loving couple!

Jake Gyllenhaal and Taylor Swift seemed like a perfect match during their 2010 courtship, what with all those romantic coffee and brunch dates! But he broke her heart by dumping her right before Christmas, reportedly because he couldn’t handle the paparazzi that followed them everywhere. (FameFlynet)

Ashlee Simpson and Ryan Cabrera only had eyes for each other back in 2003 when we saw their puppy-love romance play out on The Ashlee Simpson Show. She also starred in his music video for his hit 2004 single “On The Way Down.” (Getty)

The most controversial Bachelor couple, Ben Flajnik and Courtney Robertson, may love the limelight, but they’re reportedly headed down the aisle soon. She even tried on wedding dresses on April 18! (Courtesy of ABC)

Heidi Montag and Spencer Pratt‘s rocky romance began in The Hills in 2006, and drove a wedge between Heidi and childhood BFF Lauren Conrad. The fame-hungry couple eloped to Mexico in 2008, and have been married ever since. (FameFlynet)

Kim Kardashian and Kris Humphries got married in the most extravagant made-for-TV wedding EVER on Aug. 20, 2011 — and Kim filed for divorce 72 days later. (FameFlynet)

There are definite sparks between Jersey Shore‘s on-again-off-again couple Sammi Giancola and Ronnie Ortiz-Magro, whose volatile relationship keeps us tuning in season after season. They split in 2011, but they’ll soon reunite to start filming the show’s sixth season during summer 2012. (FameFlynet)

Green Mile actor Doug Hutchison, 51, shocked us all — and made us cringe — when he married teen bride Courtney Stodden, 17, in June 2011. With a 35-year age difference, he only thing these two seem to have in common is a desire for reality show fame! (FameFlynet)

The chemistry between Lea Michele and Cory Monteith is undeniable, both onscreen — where they play lovebirds Rachel and Finn on Glee — and off. (FameFlynet)

Jessica Simpson and Nick Lachey shared their most private married life moments — including her realization that Chicken of the Sea is in fact tuna, not chicken — when the couple starred on the MTV reality show Newlyweds from 2002-2005. Sadly, they split in 2006. (FameFlynet)

Which of these past Hollywood love birds do YOU want to see back together?

Aww, those were the good old days. Remember when we used to watch Blake Lively and Penn Badgley steal kisses on the set of Gossip Girl? What about when Chris Brown and Rihanna performed side by side and their chemistry was so hot, you could practically feel it through your TV screen? Even though many of these A-listers have since moved on from their failed loves, we are still holding out hope they’ll rekindle their flames once again. (Yes, Kim Kardashian and Reggie Bush, even you!)

It’s rare two people can outdo one another as well as Pamela Anderson and Tommy Lee did. We can’t imagine two characters who are better suited for each other…they need to rekindle their romance! (SplashNews)

Thanks to their reality show, The Newlyweds, Jessica Simpson and Nic Lachey had us completely captivated. When they broke up, we were heartbroken. We’re thrilled for both of them now with their separate families, but if something were to happen with their current relationships, we’d like to see them back together. (FameFlynet)

Actress Ashley Greene and her sweetheart singer Joe Jonas couldn’t get enough of each other, but their relationship started to fall apart. Since then, neither of them have fallen for another person in the same way… (FameFlynet)

Zac Efron and Vanessa Hudgens first met on the set of High School Musical and ended up dating for more than three years. Even though both of them have since moved on, they have remained friends, which makes us hope they’ll rekindle their flame someday. (FameFlynet)

It’s a shame Rihanna And Chris Brown ended their relationship on such a horrible note (he assaulted her over Grammy weekend two years ago), because they were one of the most passionate pairs we’ve ever seen. That said, they’ve started to talk again in the last several months, so we wouldn’t be surprised if they’re official again some time soon. (FameFlynet)

Kim Kardashian and Reggie Bush dated for years before Kim married Kris Humphries. Since her relationship to the NBA pro crumbled last year (and Reggie’s been dating a Kim K-lookalike), we think they will forever have feelings for one another. Plus, they are such an attractive couple! (FameFlynet)

Pete Wentz and Ashlee Simpson have a son together, Bronx, which is one of the major reasons we want their relationship to work out. They are the cutest family! (FameFlynet)

Blake Lively and Penn Badgley fell in love while playing lovers on Gossip Girl and we loved every second of it! On-screen and off-screen couples are the best. Someday, perhaps when they are done shooting the show, we’d love for them to reignite their passion for each other! (FameFlynet)

Never give up hope!!! Britney Spears and Justin Timberlake were the original Selena Gomez and Justin Bieber…we’ll always want them together. Even if it happens when they are senior citizens, we’ll still be thrilled beyond reason. (Photo by Dimitrios Kambouris/WireImage)

Kate Winslet and Leonardo DiCaprio may have not actually been together in real life, but we’re never going to give up hope they fall in love and give us our real life Titanic. (Photo by Alexandra Wyman/WireImage)

Jennifer Lopez and Sean “Puffy” Combs were a power couple to be reckoned with back in the day. Even though P. Diddy got into some trouble and wrecked their relationship, we still wouldn’t mind seeing them get back together eventually. (Photo by George De Sota/Newsmakers)