For a 3 1/2-year-old, Elmo sure has sung a lot on "Sesame Street" with some of the best musicians in the world. But it wasn't until Thursday that the friendly red monster made his Grand Ole Opry debut ...

Soon the beloved characters of 'Sesame Street' can literally stick with you, or at least to your letters. People still send those, right? The U.S. Postal Service announced it will release a 'Sesame ...

For a 3 1/2-year-old, Elmo sure has sung a lot on "Sesame Street" with some of the best musicians in the world. But it wasn't until Thursday that the friendly red monster made his Grand Ole Opry debut ...