The 1977 Music City USA 420 was a 420-lap race that took place on May 7, 1977, at Fairgrounds Speedway in Nashville, Tennessee.

Nashville Speedway was converted to a half-mile paved oval in 1957, when it began to be a NASCAR series track.

[2] Benny Parsons was the race winner with an average speed of 87.49 miles per hour (140.80 km/h) while the pole position winner Darrell Waltrip had a speed of 103.643 miles per hour (166.797 km/h) and finished the race in 3rd place.

[3] Twenty thousand people attended this race that had a total prize purse of $56,350 ($283,328.17 in current US dollars).

[2] Notable crew chiefs included Buddy Parrott, Jake Elder, Joey Arrington, Kirk Shelmerdine, and Dale Inman.