Basically the best songs taken from their 2 previous efforts, 1997's "Aquarium" and 2000's "Aquarius".This Premature greatest hits package is still a great pop disc packed with excellent dance tunes.If you have the two previous mentioned albums than this is not worth getting but if you missed them and want these tracks then buy it.Listen to this disc if you are having a bad day and it will perk you right up.The only problem i have with this is that the album was prematurely released, they only had 2 albums, Why so soon a greatest hits?But again it's great and i recommend it.The public may not admit it but who really hates "Barbie girl"??Not me.