Japanese pressing of their 2008 compilation features one bonus track over the U.S. edition: 'Walking In The Air'. Since their beginning in 2005, Irish vocal phenomenon Celtic Woman have sold four million units worldwide and occupied the #1 spot on the Billboard World Music Chart for a record-breaking 90 consecutive weeks. The Greatest Journey: Essential Collection represents the band's first Best Of collection and includes four new songs ('The Call', 'Pie Jesu', 'Ave Maria' and 'You Raise Me Up') as well as two songs previously unreleased on CD ('Somewhere' and 'Shenandoah'). EMI. 2008.