Laura Marling has announced details about her new album ''A Creature I Don't Know'.

The follow-up to 2010's 'I Speak Because I Can' will be released on September 12.

The album has been produced by Ethan Johns, who has previously worked with the Kings Of Leon, Ryan Adams and Ray LaMontagne.

Laura Marling has been confirmed to appear at a number of festivals this summer, including Green Man, Camp Bestival and Glastonbury.

The singer picked up the award for Best British Female Solo Artist at this year's Brit Awards.

For more information about Green Man and all this summer's festivals, check out the Gigwise Festival Guide.