Celebrate your special day with this fun and quirky "This is My Birthday Costume" t-shirt! This eye-catching tee features a classic microphone graphic in white, making it the perfect attire for karaoke nights, birthday parties, or just adding a touch of humor to your day. The shirt is a classic black tee, and ideal for casual wear. Made from comfortable fabric, this t-shirt ensures a great fit. It's an awesome gift idea for music lovers or anyone who appreciates a good laugh. Get ready to steal the show at your next birthday bash!