Arnold Schwarzenegger - Admitted to cheating on Maria Shriver, secretly fathered a child with their housekeeper Mildred Beana.
Ashton Kutcher - Allegedly cheats on Demi Moore, she files for divorce.
Charlie Sheen - Lost his job as the star of the hit show Two and a Half Men because of his out of control partying and drug use. Among other things he trashed his hotel room and ran around naked with a porn star, went to rehab, gave a bunch of bizarre interviews, fought with ex-wife Brooke Mueller, and temporarily lost custody of his twin boys. He then went on a bizarre nationwide tour putting on a one man show.
Chris Brown - Had a meltdown on Good Morning America! when questioned about his legal issues with Rihanna and then smashed a window with a chair and left the studio without a shirt.
Christina Aguilera - Arrested for public intoxication with her boyfriend.
Congressman Anthony Weiner - Admitted to Tweeting a photo of his privates to college student (not his wife), as well as engaging in 'inappropriate' online conduct with several other women. He resigned from office.
Crystal Harris - Broke up with Playboy Hugh Hefner days before their wedding.
Doug Anthony Hutchison - This 'Lost' actor married aspiring country singer Courtney Alexis Stodden. He was 51, she was reported to be 16 years old.
Hilary Swank - The Oscar winning actress attended the birthday bash of Chechen Republic President Ramzan Kadyrov, who is allegedly responsible for murder, intimidation, torture, and human rights violations.
Jessie James - Admitted to cheating on his wife Sandra Bullock with Michelle "Bombshell" McGee, then got engaged to tattoo superstar Kat Von D, but she broke up with him because she says he cheated on her with 19 women.
Kim Kardashian - Got engaged, married, and then quickly divorced from basketball player Kris Humphries after only 72 days.
Lindsay Lohan - Caused trouble while in rehab at the Betty Ford Clinic, violated probation numerous times and went to jail, was accused of shoplifting a $2500 necklace, and her acting career took a nosedive.
Mariah Yeater - Claimed Justin Bieber fathered her baby.
Matthew Fox - The 'Lost' and 'Party of Five' star was involved in an altercation with a female party bus driver outside a bar.
Mel Gibson - His custody battle with ex-girlfriend Oksana Grigorieva made his already bad reputation even worse.
Miley Cyrus - This Disney darling was accused of being a pothead and had other wild behavior.
NetFlix CEO Reed Hastings - Decided to raise price by 60% causing huge customer backlash, then proposed to split off their DVD division into a new company named Qwikster. Netflix stock plummeted losing billions of dollars in value, Qwikster plan was scrapped.
Nicholas Cage - Arrested for domestic violence during a drunken argument with his wife.
Tracy Morgan - The 30 Rock and Saturday Night Live actor made homophobic jokes and said hateful things during a comedy show, later apologized.
Dumbest Celebrity of 2011 Poll