"Un ange frappe à ma porte" (English translation: "An Angel Is Knocking at My Door") is a song recorded by the Canadian singer Natasha St-Pier. Released in 2006 as the lead single from her fifth studio album Longueur d'ondes, it achieved success in France, Belgium (Wallonia), Canada (Quebec) and Switzerland, reaching number one in Belgium and number two in France. The song was included in the greatest hits album Tu trouveras... 10 ans de succès (Best of), released in November 2009, where it appeared as the fifth track.