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After appearing on The Late Show With David Letterman, Taylor Swift slipped into something a little sexier than the plaid shirt she had on when she arrived at the studio. Taylor may not be the best live performer (I KNOW I'm not the only one who thinks this) but she rarely gets it wrong when it comes to fashion, and we're definitely digging this outfit.

Maybe that's one of the reasons Jake Gyllenhaal is so enamored with the 20-year-old starlet? Speaking of Jake, why haven't we snapped these two together yet? It's only a matter of time!