British comedian and actor Russell Brand and "Teenage Dream" singer Katy Perry were a last minute addition to the list of celebrity couples who saw their relationships break up in public and out loud in 2011, proving once again that not all matches in Hollywood have a fairy tale ending Brand called it quits on his 14-month marriage to 　　"Teenage Dream" singer Katy Perry on Friday (December 30), filing for divorce on the grounds of irreconcilable differences.The pair met in 2008 and married on October, 2010 in a lavish wedding in India. 　　Even by Hollywood standards, Sinead O'Connor's marriage was brief. The "No One Compares to You" singer announced via her website in a blog post dated December 26 that her marriage to therapist Barry Herridge has ended after 16 days of matrimony. 　　The pair wed in a Las Vegas 'drive thru' ceremony on December 8. Singer and actress Jennifer Lopez and Latin pop singer Marc Anthony decided to end their marriage after seven years. Lopez and Anthony, who have 3 year-old twins, said they had "come to amicable conclusions on all matters." 　　Demi Moore and Ashton Kutcher ended their marriage after six years, breaking up one of the most widely followed May-December romances Hollywood has seen. Reality TV star Kim Kardashian filed for divorce on October 31, just 72 days after marrying basketball player Kris Humphries in a lavish wedding that was billed as a "fairytale." 　　Former California first lady Maria Shriver filed for divorce on July 1 from her estranged husband, Arnold Schwarzenegger, the ex-governor and film star who has admitted fathering a child out of wedlock more than a decade ago. (John Russell/Reuters)