Containing a generous 24 tracks and spanning 17 years, from their first duet in 1971 to their final one in 1988, 's 2005 compilation does indeed come close to being the final word on 's classic duets. Not only does this contain all of their big hits -- among them -- it also contains album tracks from and albums, making this an excellent overview of one of the best, most iconic duets in music history. ~ Stephen Thomas Erlewine