Taylor Swift has started work on her hotly anticipated next album- according to her label boss.

The country star’s Fearless album was the biggest selling record of 2009 in the US shifting over 3 million copies.

Speaking to USA Today her record company boss Scott Borchetta said: “She was on an amazing writing spree through December and January, and we were able to go in and cut all those things.”

He continued: “If she writes something great between now and July, it will go on the record. She's been extraordinarily prolific the last six months.”

The album- Taylor’s third- is expected before the end of 2010.

Swift has also recently branched out into acting. She stars in Valentine's Day- which is released this week.