Best of 2011: Top 10 Celebrity Mysteries of the Year!

Today 7:01 AM PST by Leslie Gornstein

Rick Diamond/Getty Images; Sunday Night HD; Ginsburg/Spaly Inc.

Is Kate Middleton pregnant? What was up with Beyoncé's shape-shifting baby bump? Does Courtney Stodden own a turtleneck?

Even we cannot answer every A-list puzzle of 2011. Some pieces of celebrity news simply defy all efforts at explanation.

So as part of our Best of 2011 extravaganza, we bring you the biggest, most mysterious unanswered questions of the year!

GET THE LIST: Top 10 Celebrity Mysteries of 2011

Editor's Picks

• Divorce Filed! Divorce Filed! Katy & Russell Done
• Hot Photos
• Best of Our Best Best of Our Best 2011 Toppers