Listen to World We Knew (Karaoke Version - In The Style Of Frank Sinatra) online. World We Knew (Karaoke Version - In The Style Of Frank Sinatra) is an English language song and is sung by Karaoke Jukebox Heros. World We Knew (Karaoke Version - In The Style Of Frank Sinatra), from the album Karaoke Jukebox: The 60s, was released in the year 2009. The duration of the song is 2:46. Download English songs online from JioSaavn.