today at the record store, i was puzzled to discover that mary kate & ashley olsen, those twin tycoons of teen, had a greatest hits album out. i was astounded when i saw that this album, featuring the hits "that funky musicology" and "gimme the life of a pirate," was actually their third such volume. this feat puts them in the class of artists like elton john, bob dylan, and billy joel; that they achieved it in such a short span of time puts them in a class of their own.