The song Let It Snow / Blue Christmas by Jess and Gabriel is a medley of two classic holiday songs. The first part, Let It Snow, is about enjoying the warmth of a cozy fire while it snows outside. The singer is content to stay inside with their loved one, making popcorn and cherishing their time together. The second part, Blue Christmas, is a somber tune about missing someone during the holidays. The singer expresses their sadness at not being able to spend Christmas with their loved one and how everything feels blue without them. They imagine the snowflakes making them remember their lost love and how they'll be having a white Christmas while they'll be having a blue one. Overall, the song is a contrasting blend of cheerful holiday spirit and bittersweet emotions. It's a reminder to cherish the moments we have with our loved ones during the holiday season and to hold them close, even when things may not be perfect.