The Academy of Country Music has announced the lineup of artists for its 40th Anniversary Celebration, set to tape May 18 at the Mandalay Bay Events Center in Las Vegas and air on CBS-TV in December.

The Academy of Country Music has announced the lineup of artists for its 40th Anniversary Celebration, set to tape May 18 at the Mandalay Bay Events Center in Las Vegas and air on CBS-TV in December.

The two-hour special, which will celebrate the heritage of the ACM, will feature appearances from Alabama, Brooks & Dunn, Kenny Chesney, Merle Haggard, Alan Jackson, Barbara Mandrell, Reba McEntire, Montgomery Gentry, Rascal Flatts, George Strait and Trisha Yearwood.

More artists will be announced later.