Lisa Hannigan has teamed up with An Post to help raise some much needed funds for the Dublin Simon Community this Christmas with her version of The Christmas Waltz, a Christmas song that was written by Sammy Cahn and Julie Styne for Frank Sinatra.

An Post have chosen this song as the theme tune for their Christmas advert for 2014 which is about a return to values and traditions of old, remembering friends and family with heartfelt greetings in Christmas cards and letters, all proceeds from the sale of the track will go directly to the Simon Community to help tackle homelessness in Ireland.

The track is available until December 24th and only costs €1