THIRD ROUND OF PERFORMERS AND FIRST ROUND OF PRESENTERS SET FOR "THE 42nd ANNUAL ACADEMY OF COUNTRY MUSIC AWARDS," TO BE BROADCAST LIVE FROM LAS VEGAS, TUESDAY, MAY 15 ON THE CBS TELEVISION NETWORK

Jason Aldean, Vince Gill, Little Big Town, Taylor Swift and Josh Turner Set to Perform

Terri Clark, Montgomery Gentry, Tracy Lawrence, Blake Shelton,

"The Young and the Restless" Star Michelle Stafford,

CBS News' "The Early Show" Co-Anchor Hannah Storm and The Wreckers Set to Present

Jason Aldean, Vince Gill, Little Big Town, Josh Turner and new artist Taylor Swift are set to perform, while Terri Clark, Montgomery Gentry, Tracy Lawrence, Blake Shelton, "The Young and the Restless" star Michelle Stafford, "The Early Show" Co-Anchor Hannah Storm and The Wreckers are set to present on THE 42nd ANNUAL ACADEMY OF COUNTRY MUSIC AWARDS, hosted by Reba McEntire, to be broadcast live from Las Vegas' MGM Grand, Tuesday, May 15 (8:00-11:00 PM, live ET/delayed PT) on the CBS Television Network. The event honors country music's top talent as well as the industry's hottest emerging talent.

These artists join previously announced performers Rodney Atkins, Brooks & Dunn, Kenny Chesney, Miranda Lambert, Tim McGraw, Brad Paisley, Rascal Flatts, George Strait, Sugarland, Carrie Underwood, and Reba McEntire with special guest Kelly Clarkson. McEntire will host the event for an unprecedented ninth time.

Jason Aldean is nominated for Song of the Year and Video of the Year for "Amarillo Sky." Last year, he won the Top New Male Vocalist Award.

Vince Gill is nominated for Album of the Year for These Days and Vocal Event of the Year for "Building Bridges" with Brooks & Dunn and Sheryl Crow, and has previously won six Academy of Country Music Awards. Last year, he was the recipient of the ACM/The Home Depot Humanitarian Award.

Little Big Town is nominated for Top Vocal Group and Top New Vocal Duo or Group. This will be the second time they perform on the Academy of Country Music Awards.

Taylor Swift is nominated for Top New Female Vocalist, her first Academy of Country Music Award nomination. This is the first time she will perform live on a network-televised country music awards show. Her three-to-five minute "Road to the ACM Awards" diary entries can currently be seen on Cingular, Sprint and Verizon wireless as part of a CBS Mobile campaign.

Josh Turner is nominated for Song of the Year and Single Record of the Year for "Would You Go With Me" and for Vocal Event of the Year for "Me and God" featuring Dr. Ralph Stanley and Marty Roe, Dana Williams and Gene Johnson of Diamond Rio.

Presenting awards at THE 42nd ANNUAL ACADEMY OF COUNTRY MUSIC AWARDS are Terri Clark; Montgomery Gentry's Eddie Montgomery and Troy Gentry; Tracy Lawrence; Blake Shelton; Michelle Stafford, who plays Phyllis Abbott on CBS' "The Young and the Restless," television's number one daytime drama; Hannah Storm, co-anchor of CBS News' "The Early Show"; and The Wreckers' Michelle Branch and Jessica Harp.

The Academy of Country Music, an artist and industry-driven organization, exists to produce a world-class network television awards show, and its associated events, to provide the financial resources to ensure the ongoing philanthropic work of its Charitable Fund. Academy of Country Music Charitable Fund promotes and supports music education and humanitarian programs that transform the human spirit. Through its charitable donations, the ACMCF works toward two main goals: encouraging Learning Through Music and Healing Through Music. The Academy, which is comprised of more than 4,500 professional members and more than 40,000 associate members, was established in 1964 and is headquartered in Encino, Calif.

THE 42nd ANNUAL ACADEMY OF COUNTRY MUSIC AWARDS is produced for television by dick clark productions. The show is executive produced by Allen Shapiro and R.A. Clark, and produced by Barry Adelman. The executive in charge of production is Bob Bardo, and the executive in charge is Fran LaMaina.

RATING: To Be Announced