By this time in the 1960s, styles had dramatically changed with psychedelia and a distant folk style starting to merge. Any one who was huge earlier this decade were falling out of flavor by this point, save for the the sound of surf rock and girl groups, albeit with different faces.
Also, certain trailers seen in this movie are from movies that won't be released for another two years, namely "Yellow Submarine" and "The Green Berets". The clip at #54 is from "The Graduate". I didn't use a full promo because during that time the music Simon & Garfunkel where linked to this movie so closely it became indiscernible to a certain extent.
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