Instruct: Classify a given review as either positive or negative.
Query: Two greatest hits retrospectives--and still no "Think Twice"

While I continue to enjoy Celine's music, it's baffling that neither of her retrospectives released in the US contain "Think Twice"--the single that made Celine Dion the megastar that she is around the world (especially in the UK and Australia). Why is that?Also, why bother with a Vol.3? Celine Dion has only released 5 full-length English language studio CDs...it does not justify rereleasing and repackaging all that material again and again.A bit of a letdown, but oh well, the true fans will lap it up.