Reba McEntire [ tickets ] will release a new, three-CD set on Oct. 28 compiling the best of the popular country star's output for the MCA label, a relationship that dates to 1984.

"50 Greatest Hits" comprises 40 Top 10 singles, among them 20 No. 1 hits. The set follows last year's "Duets," which marked the first album of McEntire's career to top The Billboard 200 chart.

The best-of set is scheduled to hit stores in the midst of the "2 Worlds 2 Voices Tour," featuring McEntire and Kelly Clarkson, which continues this fall.

McEntire and Clarkson share a backing band on the road, providing for a seamless, no-intermission show. Each singer will perform her hits and the two will no doubt take the stage together to sing the duet version of Clarkson's "Because of You," which appears on McEntire's "Reba Duets" and will also appear on the upcoming best-of album.

Clarkson continues to support last summer's "My December," which debuted at No. 2 on The Billboard 200 and has spawned the Top 5 pop hit "Never Again." The set follows the "American Idol" winner's 2004 Grammy-winning sophomore effort, "Breakaway," which has gone six-times platinum on the strength of hits including "Since U Been Gone," "Behind These Hazel Eyes," "Because of You," "Walk Away" and the title track.

Reba McEntire, "50 Greatest Hits" tracklisting:

Disc One:
1. "How Blue" - #1 - 1984
2. "Somebody Should Leave" - #1 - 1985
3. "Have I Got A Deal For You" - Top 10 - 1985
4. "Only In My Mind" - Top 10 - 1985
5. "Whoever's In New England" - #1 - 1986
6. "Little Rock" - #1 - 1986
7. "What Am I Gonna Do About You" - #1 - 1986
8. "Let The Music Lift You Up" - Top 5 - 1987
9. "One Promise Too Late" - #1 - 1987
10. "The Last One To Know" - #1 - 1987
11. "Love Will Find It's Way To You" - #1 - 1987
12. "Sunday Kind Of Love" - Top 5 - 1988
13. "I Know How He Feels" - #1 - 1988
14. "New Fool At An Old Game" - #1 - 1988
15. "Cathy's Clown" - #1 - 1989
16. "'Til Love Comes Again" - Top 5 - 1989
17. "Walk On" - Top 5 - 1990

Disc Two:
1. "You Lie" - #1 - 1990
2. "Rumor Has It" - Top 5 - 1990
3. "Fancy" - Top 10 - 1991
4. "Fallin' Out Of Love" - Top 5 - 1991
5. "For My Broken Heart" - #1 - 1991
6. "Is There Life Out There" - #1 - 1992
7. "The Night The Lights Went Out In Georgia" - Top 15- 1992
8. "The Greatest Man I Never Knew" - Top 5 - 1992
9. "Take It Back" - Top 5 - 1992
10. "The Heart Won't Lie" (duet with Vince Gill) - #1 - 1993
11. "It's Your Call" - Top 5 - 1993
12. "Does He Love You" (duet with Linda Davis) - #1 - 1993
13. "Why Haven't I Heard From You" - Top 10 - 1994
14. "She Thinks His Name Was John" - Top 15 - 1994
15. "Till You Love Me" - Top 5 - 1994
16. "The Heart Is A Lonely Hunter" - #1 - 1995
17. "And Still" - Top 5 - 1995

Disc Three:
1. "Ring On Her Finger, Time On Her Hands" - Top 10 - 1995
2. "Starting Over Again" - Top 20 - 1996
3. "Fear Of Being Alone" - Top 5 - 1996
4. "How Was I To Know" - #1 - 1996
5. "I'd Rather Ride Around With You" - Top 5 - 1997
6. "What If It's You" - Top 15 - 1997
7. "If You See Him, If You See Her" (duet with Brooks & Dunn) - #1 - 1998
8. "Forever Love" - Top 5 - 1998
9. "Wrong Night" - Top 10 - 1998
10. "One Honest Heart" - Top 10 - 1999
11. "What Do You Say" - Top 5 - 1999
12. "I'll Be" - Top 5 - 1999
13. "I'm A Survivor" - Top 5 - 2001
14. "Somebody" - #1 - 2003
15. "He Gets That From Me" - Top 10 - 2004
16. "Because of You" (duet with Kelly Clarkson) - Top 5 - 2007