At two discs and 40 songs in length, Gold easily bests 2001's Magic or 2002's Definitive Collection. The compilation covers all phases of Olivia Newton-John's career, from her early years of country-tinged AM pop to her time in the pop spotlight with Grease and Xanadu and all the way to her more recent adult contemporary works with Diane Warren, Babyface, and Elton John. Though die-hard fans might find a favorite omitted, this is only a slight misstep and chances are they already own it on one of the other greatest-hits collections. There have been countless Olivia Newton-John greatest-hits compilations and anthologies, but nothing ever this sprawling and thorough in scope. This is the only release casual fans will ever need, and a fantastic starting point to discover a career rich in pop music treasures.