Best of 2008

Stars' Most Regrettable Moments

Paula Abdul's Idol blunder, Nikki Blonsky's airport brawl, Miss USA's tumble – it's all the "oops!" and blunders we just can't forget. By Aaron Parsley

CLOSE CALL

"I made a giant, horrible mistake that I regret and feel really ashamed and embarrassed about," Tatum O'Neal told PEOPLE after police arrested the Oscar winner for allegedly purchasing two bags of cocaine from a dealer near her Manhattan home. "I got close to relapsing," she later told Oprah Winffrey. "It was close enough. Too close for comfort."