Greenwood, who is a two-time Country Music Association Male Vocalist of the Year, won a Grammy in 1984 and has charted seven No. 1 hits on the Billboard's country chart.

Best known for his single "God Bless the USA," Greenwood's No. 1 hits include — "Somebody's Gonna Love You," "Going, Going, Gone," "Dixie Road," "I Don't Mind the Thorns (If You're the Rose)," "Don't Underestimate My Love For You," "Hearts Aren't Made to Break (They're Made to Love)" and "Mornin' Ride." His 1983 single "I.O.U." was also a top five hit on the Billboard Adult Contemporary charts, and reached No. 53 on the Billboard Hot 100. A 2001 re-release of "God Bless the USA" became his highest charting pop hit, reaching No. 16 on the Hot 100.