Leonard Cohen is a musician, singer-songwriter, novelist and poet from Canada. His song "Hallelujah" had limited success initially when released on his 1984 album "Various Positions", yet it became much more popular after John Cale's 1991 cover, which Jeff Buckley based his own cover of the song on. Jeff Buckley's version reached the No. 1 spot on both Billboard's Hot Digital Songs and the iTunes chart in March 2008. Since Leonard Cohen released the song, it has been performed by nearly 200 artists in many languages. This performance features Imogen Heap's a cappella version. It appears as though nine-year-old Kaylee Quinn picked the perfect song for her breathtaking performance.