Who do you think back to december is about?

Taylor Lautner

It is 100% about Taylor Lautner. Here is proof.

I go back to December all the time- That was the last time they were seen together for a couple of months.

When you're birthday passed and I didn't call- Taylor Lautner's b-day is February 11, so it adds up.

And I think about summer- July is the time when they started filming scenes for Valentine's Day.

I miss your tan skin, your sweet smile- Taylor has tan skin and is known for his great smile.

I'm so glad you made time to see me- On March 14th, the two reunited at The Farm in Beverly Hills. I bet this is around the time Taylor wrote the song.

This is why I KNOW it's about Taylor Lautner.

I absoulutely think its about her apologizing to her exboiyfriend (Probably Taylor Lautner

She said:
""Back to December" addresses a first for me, in that I've never apologized to someone in a song before. In the good, or bad, or the apology, the person I wrote the song for deserves this. This is about somebody who was incredible to me, just perfect to me in a relationship, and I was really careless with him, so these are the words that I would say to him -- that he deserves to hear."

It's abaout Taylor Lautner <3