At the 2001 AMAs, then-"It Couple" Britney Spears and Justin Timberlake committed the fauxest of pas: They each wore head-to-toe denim ensembles, otherwise known as Canadian tuxedos.

With her choker and strapless dress and his cowboy hat and blazer, they looked ready for a rodeo. It was matchy-matchy at its absolute worst.

Twin infants or toddlers can get away with this, but mega-famous pop stars? Not so much.

No word on whose camp was responsible, but these days, Timberlake is known for his style, and wife Jessica Biel (who usually looks great) says he often chooses her clothes for her. So he's clearly had a major style evolution.

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