50 Tracks is a Canadian radio program, which aired on CBC Radio One in 2004 and 2005. The show, hosted by Jian Ghomeshi, was a listener vote to determine the 50 most essential songs in pop music history, through a mix of listener voting and selection by celebrity guests. The 2004 edition of the series concentrated on pop music from anywhere in the world, while the 2005 edition concentrated on Canadian music. One song, Alanis Morissette's "You Oughta Know", was selected for both lists.