Written by Tony Hiller, Lee Sheriden and Martin Lee and produced by Hiller, it was the band's second UK number one single (after their Eurovision winner, "Save Your Kisses for Me" the previous year), spending a single week at the top in August 1977.

The song remained on the UK Chart for 12 weeks - 10 of them in the Top Ten - and was the 9th biggest selling single of the year.

The song tells of a shepherd in Mexico who falls in love with a rich girl, but he is met with resistance from her family.

"Angelo" was performed by the group at the Silver Jubilee Royal Variety Gala in November 1977 in front of Queen Elizabeth II.

[10] UK comedy group The Barron Knights parodied this song on their "Live in Trouble" single, a top ten hit in 1977, as "Ann and Joe".