The '22' singer showcased yet another cute summery dress from her endless wardrobe, teamed with some super-high heels!
Treating the sidewalk as a catwalk, Taylor looked pretty as a picture in her green frock which featured a flirty thigh-grazing hem and an adorable ditsy floral print.
The stylista toted a tan leather handbag on one arm while covering her peepers with a pair of Ray-Ban Wayfarers, finishing with a pop of Hollywood red lippy.
But we couldn't keep our eyes from watering when we spotted her towering peep-toe shoes!
Not only did her choice of footwear feature a large platform, they also boasted super-sized stiletto heels. Fine for a night out, but just how did Taylor manage to rock hers all day long?! We'd be in so much pain!
Meanwhile, Karlie looked much more casual for their outing, donning skin-tight sports leggings and an electric blue T-shirt.
And unlike Taylor, Karlie kept her tootsies comfy in a pair of fluorescent yellow Nike trainers, sweeping her blonde bob into a fuss-free bun.
With such strikingly different outfits, we wonder where these best pals were off to?!
What do you think of Taylor and Karlie's looks? Let us know by commenting below as the best comment across the site each week wins £50!
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Watch Taylor's video for 'We Are Never Ever Getting Back Together' below: