Laura Dern & Ben Harper
Apparently, she never saw it coming. After five years of marriage and 10 years as a couple, the Grammy-winning musician suddenly filed for divorce from the actress and mother of their two children. The reasons? The ever-popular irreconcilable differences.
Kelsey & Camille Grammer
The new Real Housewives of Beverly Hills castmember wants nothing more to do with housewifery, at least when it comes to her 13-year marriage to the Frasier star. The former Playboy model cites "irreconcilable differences" in her divorce petition and is requesting primary custody of their two children.
Jake Pavelka & Vienna Girardi
Looks like those who thought this Bachelor couple's relationship wouldn't last were right. After a few months of engagement, Pavelka and his controversial choice of mate have split. Perhaps Vienna's "stalkerish" ways are to blame, or maybe Jake's heart belongs to the latest Bachelorette?
Halle Berry & Gabriel Aubry
Being mutually beautiful was no guarantee of longevity. The Oscar winner and her model boyfriend have reportedly split after four years together. They're said to be currently working out a custody agreement for their 2-year-old daughter, Nahla.
Sandra Bullock & Jesse James
The trainwreck that was the Jesse James sex scandal finally came to a shuddering stop this week as Sandy confirmed she would be divorcing her husband of almost four years (did anyone have any doubts?). But from the rubble some good news: The actress is the proud new mom of adopted tot Louis.
Mel Gibson & Oksana Grigorieva
After more than a year together and the birth of their daughter, Lucia, the Braveheart star and his songbird claim they've grown apart. The two first stepped out together just weeks after the Oscar winner announced his divorce from his wife, Robyn, after nearly 30 years of marriage.
Melissa & Tammy Etheridge
The singer and The L Word star (née Tammy Lynn Michaels) exchanged vows in 2003 and endured a battle with breast cancer and the birth and adoption of their two children. Their separation comes after nine years together.
Larry King & Shawn Southwick
The 76-year-old talk-show royal filed for his seventh divorce, this time from his wife of nearly 13 years, citing irreconcilable differences. They have two sons together.
Anna Torv & Mark Valley
They met on the set of Fringe and secretly tied the knot in late 2008. After he became a Human Target and she remained on the sci-fi drama, they just as quietly went their separate ways less than two years later.
Jenny McCarthy & Jim Carrey
Fans of fun-loving power couples are delivered yet another blow as the comedic cuties announce they're breaking up after five years together.
So were those high-flying Valentines just a last-ditch effort?
Selena Gomez & Nick Jonas
The Disney darlings are dunzo. The cutest JoBro (sorry Joe and Kevin) and the equally adorable starlet officially put their puppy love to sleep.
Kim Kardashian & Reggie Bush
The on-again, off-again couple have returned to splitsville. But word is they're open to the idea of reconciling down the road, so we're holding out hope for the E! star and her New Orleans Saint.
Kate Winslet & Sam Mendes
At least their Oscars are for keeps. The award-winning Brits ended their marriage after nearly seven years and one sadly prophetic Revolutionary Road.
Jennifer Love Hewitt & Jamie Kennedy
For those of you who thought this relationship didn't have a ghost of a chance, well, you were right. The TV costars called it quits after a year of whispering sweet nothings to each other.
Ryan Phillippe & Abbie Cornish
After a nearly four-year courtship, the Aussie actress said good-bye to the former Mr. Witherspoon, as well as his L.A. home.
Noah & Tracy Wyle
The former ER star and his wife separated after 11 years together. Apparently this is one marriage that simply couldn't be resuscitated.
Taylor Swift & Taylor Lautner
Seeing this relationship come to an end hit us hard. So much so that we even felt the need to express our sadness by way of an ode.
Susan Sarandon & Tim Robbins
A moment of silence for a hot couple who lasted 23 years in Hollywood!!! Speaking of silence, their rep announced that their split happened last summer and then they officially clammed up.
Jake Gyllenhaal & Reese Witherspoon
If there was ever a couple that looked like they would go the distance, it was this adorable pair, who'd been together since falling in love while making their 2007 film Rendition. But, alas, it wasn't meant to be.
Kate Hudson & Alex Rodriguez
Evidently all that time spent in the stands just wasn't enough, as the relationship between the actress and the Yankee slugger appears to have struck out. Fortunately, there's always Mom to fall back on.
Julianne Hough & Chuck Wicks
Ta-da! Six months after Hough tried to show her country-singer beau the ropes on Dancing With the Stars, their relationship hit the skids. Maybe the 21-year-old, who now has a broken engagement and an ex-live-in-boyfriend to her name, will finally start acting her age and stop trying to settle down.
Avril Lavigne & Deryck Wibley
The pop princess announced her long-rumored separation from the Sum 41 singer on her website, a few days after debuting her Abbey Dawn line at Mercedes-Benz Fashion Week.
Karina Smirnoff & Maksim Chmerkovskiy
This is the day the music died. On a positive note, the ratings should be spectacular for the new season of Dancing With the Stars!
LeAnn Rimes & Dean Sheremet
A week after her former costar and supposed boyfriend, Eddie Cibrian, announced the end of his marriage, Rimes did the same for her seven-year union with Dean Sheremet. In a post on her website, the actress-singer said she and her estranged husband, who reportedly have been living apart for some time, "remain committed and caring friends with great admiration for [each other]."