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 ...

NASHVILLE, Tenn. (AP) — 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 ...