Jealousy is the third studio album by Japanese heavy metal band X Japan, then named X. The album was released on July 1, 1991 by Sony, as the band's second major label release. Jealousy is the band's best-selling album, having sold more than one million copies, it topped the Oricon chart and stayed on the chart for 50 weeks. The album's singles would also reach the top three on the chart. It is their last album under the name "X", before changing to "X Japan", and the last to feature Taiji on bass, who would be replaced by Heath.