Paula Abdul and Jeff Bratton: In January, news broke that Abdul and her boyfriend had split after a year and a half together. Bratton, a record label owner, told People it was an amicable breakup.
k.d. lang and Jamie Price: In January, reports surfaced that lang had filed legal documents to dissolve her domestic partnership with Price because of "irreconcilable differences." Lang and Price were together nine years.
Aretha Franklin and William Wilkerson: The legendary songstress announced she was tying the knot to her longtime friend at the start of the year, but three weeks later changed her mind. She said the pair decided they were "moving a little too fast." It's unclear if the pair are still romantically involved.
Simon Cowell and Mezhgan Hussainy: In January, the "X-Factor" judge said he and his fiancée were on "a break."
Heidi Klum and Seal: The supermodel and pop star announced in January they were splitting up. They were married seven years.
Drew Carey and Nicole Jaracz: Also in January, Carey called off his engagement to Jaracz. The two were engaged in October 2007.
Dennis Quaid and Kimberly Buffington-Quaid: The actor's wife filed for divorce in March. The couple married in 2004, and have two children together.
Jennie Garth and Peter Facinelli: In March, the couple announced they were splitting up after 11 years of marriage. They have three children together.
Martin Lawrence and Shamicka Lawrence: The comedian and his wife announced in April they were divorcing. They were married two years, but their relationship spanned 15 years.
Chris Harrison and Gwen Jones: The longtime host of "The Bachelor" announced in May that he had separated from his wife of 18 years.
Todd Bridges and Dori Bridges: In May, the former "Diff'rent Strokes" star and his wife announced their decision to part ways. The couple was married for 14 years, and have a 13-year-old son, Spencir.
Danica McKellar and Mike Verta: The former "Wonder Years" star announced in June that she and her composer husband were divorcing after three years of marriage.
Johnny Depp and Vanessa Paradis: In June, the actor's publicist released a statement to "Entertainment Tonight" that said the longtime couple had "amicably separated." They have two children together.
Tom Cruise and Katie Holmes: The former "Dawson's Creek" star filed for divorce in June. Cruise and Holmes were married for nearly six years and have a daughter, Suri.
Chad Johnson and Evelyn Lozada: In August, Lozada filed for divorce from Johnson after he allegedly head-butted her following an argument over a receipt for a box of condoms. The couple was married for six weeks.
Kenny G. and Balynda Helene Benson-Gorelick: According to People, the smooth jazz star filed for divorce in August. The two, who were married nearly 20 years, had already been separated for seven months.
In September, "Parks and Recreation" star Amy Poehler and Will Arnett, who starred in "Arrested Development," announced they were separating after nine years of marriage. The couple has two sons.
Danny DeVito and Rhea Perlman: The longtime couple announced their separation in October. According to People magazine, DeVito met Perlman in 1970, backstage at one of his off-Broadway performances.
Eva Longoria and Mark Sanchez: The "Desperate Housewives" star and Jets player broke up in October after a few months of dating, according to the New York Post's Page Six.
Taylor Swift and Conor Kennedy: In October, US Weekly reported Swift and Kennedy had broken up. A friend told the magazine that "it was just a distance thing. No hard feelings."
Justin Bieber and Selena Gomez: E! Online reported in early November that Bieber and Gomez had recently split. The singer and "Wizards of Waverly Place" star went public with their relationship in February 2011.