Guess what?! This is the original English song on which the french song, Aux Champs-Elysées, was based. So you already know it!
Lyrics were written by Michael Anthony Deighan, music by Michael Wilshaw and released by the British rock band Jason Crest in 1968. Then French lyricist Pierre Delanoë adapted the lyrics into French and it was recorded by Joe Dassin in 1969.