Listen to Someday We'll Know (In the Style of New Radicals) [instrumental Backing Track] online. Someday We'll Know (In the Style of New Radicals) [instrumental Backing Track] is an English language song and is sung by Original Backing Tracks. Someday We'll Know (In the Style of New Radicals) [instrumental Backing Track], from the album Karaoke Hits: Rock Voice, was released in the year 2013. The duration of the song is 3:39. Download English songs online from JioSaavn.