It was slit-your-wrists dull, but in a hackneyed avant-garde manner.
Even the harmonized choral accents are hackneyed, ripped straight from her previous mega-hit “You Belong with Me.”
hackneyed chestnuts like that are reserved for old toastmasters, and yet, there we were.
late 12c., from Old English Hacan ieg "Haca's Isle" (or possibly "Hook Island"), the "isle" element here meaning dry land in a marsh. Now well within London, it once was pastoral and horses apparently were kept there. Hence hackney "small saddle horse let out for hire" (c.1300), with subsequent deterioration of sense (see hack (n.2)). And cf. French haquenée "ambling nag," an English loan-word.