It's the stuff Gossip Girl posts are made of.  Apparently, megastar Taylor Swift, known for her massive circle of cool girl BFFs, has set her sights on a new addition: Blake Lively.

The fellow blonde and new mother was spotted with the "Shake It Off" singer in Australia, palling around at the Warner Bros. Movie World theme park. Swift, true to form, inspired squad goals around the world with a fun snap of the pair hanging out posted on Instagram.

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Apparently, the Grammy winner spent her day off riding roller coasters, seeing kangaroos and having tons of laughs with the Gossip Girl alum, as she captioned on her jump shot photo.

Taylor was looking ever chic in black shorts and a white tank top paired with ankle boots and dark sunnies, while Blake Lively looked relaxed and casual in a pink tee tucked into her denim shorts and a pair of sneakers.

Earlier into ther Australian jaunt, Swift posted a photo of herself posing with a kangaroo for a selfie.

Lively was then spotted at Swift's Australian leg of the 1989 World Tour where she was seen dancing and singing to Swift's songs in a white baseball cap.

The beauty, married to Ryan Reynolds who will next be seen in the Marvel film playing Deadpool, has also been pretty vocal about her love for the singer after she posted an Instagram about it.

Tagstaylor swift, Blake Lively, 1989 World Tour, Australia