Sesame Street's official X account celebrated the birthday of one of the show's most beloved minor characters — Slimey the worm — with a festive tribute post on Friday, September 19, 2026.
The post featured a split-design graphic that combined a close-up photograph of a fuzzy, orange-and-yellow striped caterpillar-like plush toy with large black eyes and a fuzzy orange snout, resting on a rock against a softly blurred natural background. The lower half of the image displayed a vibrant orange background decorated with colorful confetti dots and the text "HAPPY BIRTHDAY, SLIMEY!" in bold white lettering.
Alongside the graphic, the Sesame Street X account posted a short message: "Happy birthday to the worm who does it all! We love you, Slimey. #HappyBirthdaySlimey"
Slimey is Oscar the Grouch's pet worm and has been a recurring character on Sesame Street since the show's early seasons. Despite his small size, Slimey has taken on outsized roles throughout the series' history — from serving as the page-turner and winner of the "International Worm Beauty Pageant" to starring in his own die-casted toy line. He's known for his distinctive squeaky voice and his loyalty to Oscar, often helping with the Grouch's schemes and antics from inside his trash can.
The tribute arrived as part of Sesame Street's ongoing social media presence, which has become increasingly active and creative on X in recent years. The account regularly posts character tributes, behind-the-scenes content, and interactive posts that engage its millions of followers worldwide.
The #HappyBirthdaySlimey hashtag reflected the affection fans have for the tiny character, who may not get the spotlight as often as Elmo, Cookie Monster, or Big Bird — but who has earned a special place in the hearts of longtime viewers.
Sesame Street continues to air new episodes and specials, with the 45th season set to premiere in October 2026 featuring a crossover special with PBS Nature titled "Sesame Street and the Great Elephant Adventure."
