Wish a Stranger Things fan a happy birthday with a musical birthday card they're sure to appreciate. Cover features Eleven, Mike, Will, Dustin, and Lucas, and the message: "Happy birthday! Or, as they say in the Upside Down . . ." Inside reads: "Happy birthday" in upside down lettering. Card plays Stranger Things theme song when opened. Ideal for gift enclosures and special enough for a standalone offering, this card is a great way to celebrate your husband, wife, sister, brother, friend, or any special person in your life. Birthday card for anyone measures 5.8" x 8.3" and comes with a coordinating envelope. Printed on high quality paper stock, Hallmark's eco-friendly greeting cards are made with paper from well-managed forests.