Dolly Parton is GAC's Artist of the Month for March, and she joins host Nan Kelley tonight on the Top 20 Country Countdown.

A member of the Country Music Hall of Fame, she's just released a new album, Backwoods Barbie, and she'll discuss the project with Nan. The title track is a song she penned for a theatrical production of 9 To 5, and that play is supposed to debut in Los Angeles this fall. Dolly also expects it will land on Broadway sometime in 2009.

Top 20 Country Countdown counts down the week's top country videos from No. 20 to No. 1 as voted by viewers on each week on GACTV.com. A new countdown premieres every Friday at 8 p.m. ET on GAC and airs again Saturdays at 10 a.m. and 5:30 p.m. ET; Sundays at 1 p.m. ET; and Mondays at 10 a.m. ET. Viewers can vote for their favorite videos, as well as purchase Top 20 artists' albums and ringtones at GACTV.com.

THIS WEEK'S CHART:

1. Carrie Underwood "All-American Girl"
2. Taylor Swift "I'm Only Me When I'm With You"
3. Alan Jackson "Small Town Southern Man"
4. Keith Urban "Everybody"
5. Chuck Wicks "Stealing Cinderella"
6. Lady Antebellum "Love Don't Live Here"
7. Sugarland "Stay"
8. James Otto "Just Got Started Lovin' You"
9. Kenny Chesney "Shiftwork"
10. Gary Allan "Watching Airplanes"
11. Brad Paisley "Letter To Me"
12. Bucky Covington "It's Good To Be Us"
13. Jason Aldean "We Laughed Until We Cried"
14. Luke Bryan "We Rode In Trucks"
15. Tim McGraw "Suspicions"
16. Craig Morgan "International Harvester"
17. Brooks & Dunn "God Must Be Busy"
18. Bon Jovi & LeAnn Rimes "Til We Ain't Strangers Anymore"
19. Emerson Drive "You Still Own Me"
20. Joe Nichols "It Ain't No Crime"