Denver also appears on the album's cover version of his composition "Annie's Song", where he accompanies Domingo on guitar.

The owner told the producer that his "wife was in love with the tenor" as explanation for repeatedly playing the opera singer's record.

[2] Lee Holdridge, who conducted the music on the album, credited the pairing of Domingo and Denver with paving the way for recent "popera" phenomena like the Three Tenors, Josh Groban, and Andrea Bocelli.

Initially, the record company did not intend to release any singles from Perhaps Love, which first came out in September 1981, but decided to after the album unexpectedly sold half a million copies by December.

Additionally, the elder Domingo sang the duet with tenor Rolando Villazón during a televised concert at Schönbrunn Palace in 2008.