The 49th annual ACM Awards are still a week away, but we already know the names of some of the winners.

Carrie Underwood, Rascal Flatts, Kris Kristofferson, Dean Dillon, Toby Keith and Ronnie Milsap are all recipients of ACM Achievement Awards. The winners will be presented with their trophy at a special, off-camera ceremony on Sept. 9 at the Ryman Auditorium in Nashville.

Underwood will receive the Gene Weed Special Achievement Award, which acknowledges unprecedented, unique and outstanding individual achievement in country music. The songstress had a remarkable 2013. She sang the theme song for NFL 'Sunday Night Football,' and starred in the live televised production of 'The Sound of Music.' In addition, Underwood continued her global Blown Away Tour, which included a stop at London's prestigious Royal Albert Hall.

Rascal Flatts will be presented with the Jim Reeves Award, which recognizes country artists who have made outstanding contributions in the acceptance of country music all over the world. The trio performed seven shows overseas last year, including stops in Norway, Sweden, the United Kingdom and Ireland.

Keith and Milsap will both receive the Career Achievement Award, for their advancement of the popularity and acceptance of country music through their endeavors in the entertainment industry beyond music. Steve Buchanan, president of the Opry Entertainment Group, will also receive the award.

Kristofferson and Dillon will receive the Poet's Award, along with Buck Owens and Jack Clement, who will receive it posthumously. The Poet's Award recognizes songwriters and artists who have made outstanding musical and/or lyrical contributions throughout their careers in country music.

See a complete list of upcoming honorees here.