Bing reveals that Justin Bieber was the most-searched celebrity.
He elbowed Kim Kardashian out of the way for the honor.
The briefly-married reality show star fell from number one in 2010 to number two in 2011.
The Casey Anthony trial was the top news story in Bing searches for 2011.
Interest was intense in the Florida trial of the young mother accused of killing her toddler daughter Caylee.
Coverage of the death of Osama bin Laden ranked second in the 2011 Bing news searches.
Tennis star Maria Sharapova was the most-searched name in sports, beating out Tiger Woods and Brett Favre.
The "American Idol" singing competition racked up the most 2011 search hits in the television show category.