The song "Rudolph The Red-Nosed Reindeer / Jingle Bells" by Jessie J combines the lyrics of two popular Christmas songs, "Rudolph The Red-Nosed Reindeer" and "Jingle Bells." "Rudolph The Red-Nosed Reindeer" tells the story of Rudolph, a reindeer with a shiny red nose. While all the other reindeer used to laugh and call him names, including not allowing him to join in any reindeer games, Santa Claus recognizes Rudolph's special nose. On a foggy Christmas Eve, Santa invites Rudolph to guide his sleigh with his bright nose, and Rudolph becomes a hero. "Jingle Bells" is a classic Christmas song that depicts the joy of riding in a one-horse open sleigh through the snow. The lyrics describe the excitement and laughter as they dash through the fields, hearing the bells on the horse's harness jingle and brightening their spirits. The song also humorously recounts a mishap during a recent sleigh ride. In Jessie J's version, she adds a bridge where she sings about riding a shooting star and feeling happy witnessing the delight on people's faces. She expresses the beauty of giving and shares her love for the excitement and joy that the holiday season brings. Overall, the song is a festive and uplifting medley of two beloved Christmas tunes, combining their catchy melodies and spreading holiday cheer through its lyrics.