"Winter Song" is a seasonal song co-written and co-sung as a duet by Sara Bareilles and Ingrid Michaelson. Although considered by many to be a Christmas song, no explicit reference to the holiday can be found in its lyrics. It appeared on the holiday compilation album The Hotel Café Presents Winter Songs by various female artists, released in 2008 through Epic Records. It became a minor hit in Canada in 2008, reaching number 97. Upon release in Ireland in 2011, it reached number two for two weeks. A special charity single by #twitterxmassingle was also a separate hit in Ireland alongside the original version, reaching number eight.