'New Girl' will premiere in the US next month

She And Him‘s Zooey Deschanel has written and recorded the theme song for her new sitcom New Girl.

The actress/singer’s character in the show, which premieres in the US on September 20, sings whenever she becomes emotionally overwhelmed.

Deschanel told Billboard.com:

It’s just a part of how she expresses herself. They’re songlets – they come spontaneously to the character. The songs she sings are written into the script.

She added that her singing will incorporate a wide variety of styles, including jazz, heavy metal and a “ghoulish voice”.

Meanwhile, She And Him – which also features singer-songwriter M. Ward – have announced plans for releasing a Christmas-themed ‘holiday record’ later this year.

Writing about ‘A Very She And Him Christmas’ on Twitter earlier this week, Deschanel said:

Exciting news! @sheandhim will be releasing our first holiday record later this year! Been working on it a while! I’m super pumped about it!

The duo have released two albums – 2008’s ‘Volume One’ and its follow-up ‘Volume Two’ last year.