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Madonna & Guy Ritchie

THE SPLIT: Squabbles over Kabbalah, adoption and their growing emotional distance undid the singer, 50, and the director, 40, after more than seven years of marriage.

THE AFTERMATH: Amid rumors of a romance with Yankees star Alex Rodriguez, Madonna kept busy on her Sticky & Sweet tour while Ritchie shot Sherlock Holmes. At stake in their divorce: her estimated $475 million fortune and custody of their kids Rocco, 8, and David, 3.

Anne Hathaway & Raffaello Follieri

THE SPLIT: After four years of dating, Hathaway decided to cut her losses with her Italian businessman beau, 30, in June when she learned his charitable foundation (to which she had donated) was under investigation for tax irregularities. Days later, he was arrested by FBI agents.

THE AFTERMATH: After pleading guilty to 14 counts of wire fraud, money laundering and conspiracy, Follieri was sentenced to 4 1/2 years in prison. Hathaway, 26, who has received accolades for her performance in Rachel Getting Married, has moved on: She happily said she was single in October, and has since been linked to actor Adam Shulman.

David Duchovny & Téa Leoni

THE SPLIT: Married 11 years, the Californication star, 48, and actress Leoni, 42, confirmed in October that they had separated. Their parting was announced following Duchovny's stint in rehab for sex addiction.

THE AFTERMATH: Keeping things amicable, the couple have taken kids Madelaine West, 9, and Kyd, 6, to a Knicks game since the split. "They are the priority now," says a Leoni pal.

Pink & Carey Hart

THE SPLIT: Two years after they tied the knot on a Costa Rican beach, the singer, 29, and the motocross racer, 33, called themselves "best friends with a huge amount of love and respect for one another" when they announced their separation in February.

THE AFTERMATH: He starred in the video for her No. 1 hit "So What," and has admitted to "wishful thinking" about a future with his ex.

Married 3 years
AL & STAR
After years of rumors about the state of their union, the former View host bid adieu to banker Al Reynolds.

Married 5 years
LIV & ROYSTON
Tyler and English rocker Langdon, who have a son, Milo, 4, decided to part ways in May.

Married 19 years
MARSHA & ROBIN
After having two children with Williams (and producing three of his films!), she filed for divorce in March.

Together 1 year
GEORGE & SARAH
Women of the world, take heart: after splitting from model Larson, Clooney is available again.

Shania Twain & Robert Lange

THE SPLIT: After 14 years of marriage, an alleged affair between Lange, 60, and Twain's best friend, Marie-Anne Thiébaud, left the singer, 43, in "total shock," said a pal after the news broke in May.

THE AFTERMATH: Twain got a standing ovation in her first post-split public appearance, presenting an award at the Country Music Awards Nov. 12. Also helping her heal: writing songs and spending time with son Eja, 7, and close pals—including Frédéric Thiébaud, the ex-husband of Marie-Anne.

Together 7 years
HOLLY & HUGH
The Playboy model left Hef in hopes of starting a family one day. She's since been linked to illusionist Criss Angel.

Married 15 months
KATE & ALEX
Walsh and her film-exec husband had "irreconcilable differences."