Spain was represented at the Eurovision Song Contest 1984 with the song "Lady, Lady", composed by Miguel Blasco Larami, with lyrics by , and performed by the group Bravo. The Spanish participating broadcaster, (TVE), internally selected its entry for the contest. The song, performed in position 4, placed third out of nineteen competing entries with 106 points.
(TVE) internally selected "Lady, Lady" performed by the group Bravo as for the Eurovision Song Contest 1984. The song was composed by Miguel Blasco Larami, and had lyrics by . The members of the group were Amaya Saizar herself, Yolanda Hoyos, Luis Villar, and Esteban Santos. The broadcaster announced the name of the song, the songwriters, and performers on 14 March 1984. On 3 April, TVE presented the song along the promo video that was distributed to the other participant broadcasters.
On 5 May 1984, the Eurovision Song Contest was held at the in Luxembourg hosted by (RTL), and broadcast live throughout the continent. Bravo performed "Lady, Lady" 4th on the evening, following and preceding . Eddy Guerin conducted the event's orchestra performance of the Spanish entry. At the close of the voting "Lady, Lady" had received 106 points, placing 3rd in a field of 19.
TVE broadcast the contest in Spain on TVE 2 with commentary by José-Miguel Ullán. Before the event, TVE aired a talk show hosted by Marisa Medina introducing the Spanish jury, which continued after the contest commenting on the results.
TVE assembled a jury panel with eleven members. The following members comprised the Spanish jury:
The jury was chaired by , with Francisco Hortelano as secretary. Francisco Javier Alfaro was the notary public. These did not have the right to vote, but the president decided in the event of a tie. The jury awarded its maximum of 12 points to .