Sat., Dec. 31, 2011 2:17 PM PST
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
Pregnant Megan Fox Steps Out With Husband and Baby
50 Shades: Dakota Johnson Kisses Jamie Dornan for First Time!
Family Ties Star Meredith Baxter Marries Nancy Locke
Britney Spears' Biggest Career Regret: Reality Show With K-Fed
Justin Bieber's Mom: What I Think of His Tattoos, Becoming a Grandma
A Fan Favorite Dies on Once Upon a Time!