Chrystalief (born 6 April 1975) is a Norwegian musician songwriter producer. His debut-single Papa You Know was released in 1999 on the indie-label Supernova. Papa You Know was a spiritual mid-tempo song with massive falsetto vocal-arrangements synthesizers and electric guitars. The second single Fly With The Boys was used on the soundtrack for the famous TV-series and is his most successful song in terms of radio-airplay 'Tufte I.L..