#20. Hunter Hayes - "Somebody's Heartbreak"

(Photo by Alexandra Wyman/Getty Images for Warner Music Group)

Carrie Underwood

(Photo Credit: Kevork Djansezian/Getty Images)

#18. Kacey Musgraves -"Merry Go 'Round"

(Photo Credit: Rick Diamond/Getty Images for CMT)

#17. Mumford & Sons - "I Will Wait"

(Photo by Kevork Djansezian/Getty Images)

#16. Florida Georgia Line - "Get Your Shine On"

(Photo by Mark Davis/Getty Images)

#15. Jake Owen - "Anywhere With You"

(Photo by Mike Ehrmann/Getty Images)

#14. Miranda Lambert - "Mama's Broken Heart"

(Photo by Christopher Polk/Getty Images for NARAS)

#13. Blake Shelton - "Sure Be Cool If You Did"

(Photo by Jason Kempin/Getty Images)

#12. Little Big Town - "Tornado"

(Photo by Mark Davis/Getty Images)

#11. Brad Paisley - "Southern Comfort Zone"

(Photo by Alex Wong/Getty Images)

#10. Tim McGraw and Taylor Swift - "Highway Don't Care"

(Photo: Christopher Polk/Getty Images)

#9. Lady Antebellum - "Downtown"

(Photo by Neilson Barnard/Getty Images)

#8. Kenny Chesney - "Pirate Flag"

(Photo by Kevork Djansezian/Getty Images)

#7. Gary Allan - "Every Storm (Runs Out Of Rain)"

(Photo by Rick Diamond/Getty Images for IEBA)

#6. Jason Aldean - "The Only Way I Know"

(Photo by Frazer Harrison/Getty Images for PCA)

#5. The Band Perry - "Better Dig Two"

(Photo by Kevin Winter/Getty Images)

#4. Taylor Swift - "Begin Again"

(Photo by Christopher Polk/Getty Images for NARAS)

#3. Tim McGraw - "One Of Those Nights"

(Photo by Rick Diamond/Getty Images)

#2. George Strait - "Give It All We Got Tonight"

(Photo by Ethan Miller/Getty Images)

#1. Dierks Bentley - "Tip It On Back"

(Photo by Mark Davis/Getty Images)