. ▁ ▁In ▁ 1 9 6 0 , ▁Ho op ▁took ▁part ▁in ▁the ▁German ▁Euro vision ▁selection ▁final , ▁and ▁his ▁song ▁" B onne ▁nuit ▁ma ▁ch érie " ▁was ▁chosen ▁to ▁go ▁forward ▁to ▁the ▁fifth ▁Euro vision ▁Song ▁Cont est , ▁held ▁in ▁London ▁on ▁ 2 9 ▁March . ▁ ▁At ▁the ▁contest ▁" B onne ▁nuit ▁ma ▁ch érie " ▁( which , ▁despite ▁its ▁title , ▁was ▁s ung ▁in ▁German ) ▁finished ▁in ▁joint ▁fourth ▁place ▁of ▁the ▁ 1 3 ▁entries . ▁ ▁Ho op ▁recorded ▁several ▁successful ▁German ▁cover ▁versions ▁of ▁English - language ▁hits ▁( such ▁as ▁" Are ▁You ▁L ones ome ▁Ton ight ? ") ▁before ▁joining ▁forces ▁in ▁ 1 9 6 2 ▁with ▁Finn ish ▁singer ▁P irk ko ▁Mann ola , ▁with ▁whom ▁he ▁recorded ▁a ▁number ▁of ▁popular ▁tracks . ▁From ▁ 1 9 6 4 , ▁Ho op ▁began ▁recording ▁with ▁Aust rian ▁singer ▁Andrea ▁Horn , ▁who ▁he ▁had ▁married ▁in ▁ 1 9 6 1 . ▁ ▁Their ▁material ▁was ▁mainly ▁folk ▁music ▁orient ed . ▁In ▁ 1 9 7 3 , ▁they ▁released ▁the ▁single ▁"", ▁written ▁by ▁Lyn sey ▁de ▁Paul ▁( cred ited ▁as ▁Rub in ) ▁and ▁Ron ▁R oker ▁as ▁W yn ▁& ▁Andrea . ▁ ▁In ▁ 1 9 7 8 , ▁Ho op ▁and ▁Horn ▁retired ▁from ▁show ▁business . ▁ ▁They ▁have ▁since ▁established ▁themselves ▁as ▁successful ▁publish ers ▁of ▁sail ing ▁guide