Britney opened up to People.com about her big year, who placed her on their 25 Most Intriguing People of 2012 list.
Britney judged on this season of The X Factor, topped Forbes' top-earning female musicians list and scored a number one song with "Scream & Shout."
Her year, as she puts it best, was "amazing."
1. Her career
"It's no secret I'm a shy person. I feel doing this show over the past year has allowed me to come out of my shell a lot more. Everyone on the show has been amazing and made me feel really comfortable."
2. Her sons Preston, 7 and Jayden, 6
"It's really amazing to see how quickly my boys are growing up," she says. "It seems like yesterday I was reading books to them at night. Now I sit and listen to them read me books!"
3. Her fiancé Jason Trawick, 41
"It amazes me that no matter what situation I'm in," says Spears, "Jason has the ability to always make me feel protected and loved."