'This is Christmas' is a festive album Brit singer Emmy the Great wrote with Ash-frontman Tim Wheeler. It's released next week (you can check it on Spotify), it features mostly original songs. You can pick up Christmas Day (I wish I was surfing) on their Facebook.
In 2002, Emmy recorded a Christmas song with Lightspeed Champion. Very fragile, very cool.
Emmy the Great & Lightspeed Champion - Christmas in Prison