American line dancing developed from contra dances and was influenced by English and French folk dances. During the 1960s, contra dances transformed into line dancing. The Tush Push in 1980 is considered the first choreographed line dance, while the 1992 song "Achy Breaky Heart" drew international attention to American line dancing and linked it to country and western music. Line dances involve groups standing in lines and performing choreographed steps together to country and western music, which typically has a simple melody and rhythm, 4/4 time signature, and uses instruments like banjo, steel guitar, and harmonica.