Katy Perry's not so subtle dig at Taylor Swift

Katy Perry's new fragrance has many people speculating that the name is a subtle dig at longtime frenemy Taylor Swift.

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The perfume is called Mad Love -- as in You know it used to be mad love – and is a spin-off from her 2015 scent, Mad Potion. Sure, it could just be a coincidence that Katy's new fragrance has the same name as a lyric from Taylor's song Bad Blood, which is widely thought to be about Katy.

Or this could be yet another jab in the never-ending feud between the two pop stars.

Swift, 26, first brought light to the rift in a 2014 Rolling Stone interview when she called out an unnamed female artist for "stealing" some of her dancers for a tour. Since then the pair have gone back and forth on social media through the years making pointed comments to one another.

In February, Katy, 31, claimed that Taylor was invited to her pre-GRAMMY party, but the "Blank Space" singer never showed.

Taylor isn't just feuding with other female pop stars. The chart-topper recently split from longtime love Calvin Harris and weeks later was photographed kissing actor Tom Hiddleston. The new pics prompted Calvin to delete all social media interactions with his ex, including the amicable breakup tweet he had posted.

The GRAMMY winner is also at odds with Kanye West and Kim Kardashian, the latter of which called out Taylor in a recent GQ interview, saying she likes to "play the victim" after Kanye's song Famous was released.

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