Listen to I Wanna Know (Radio Edit) online. I Wanna Know (Radio Edit) is an English language song and is sung by Joe. I Wanna Know (Radio Edit), from the album R&B - 100 Hits - The Greatest R n B album - 100 R & B Classics featuring Usher, Pitbull and Justin Timberlake, was released in the year 2013. The duration of the song is 4:41. Download English songs online from JioSaavn.