Hollywood actress Jessica Alba has opened up about filming the 'Bad Blood' video with Taylor Swift and revealed that it was a fantastic experience. 

During a new interview with Andy Cohen for 'Watch What Happens Live', the beauty was grilled about starring in the video and she confessed that before sharing screen time with the blonde songstress she didn't really know her at all. 

When asked who her favourite member of Swift's squad is she was quick to name actress and writer Lena Dunham, and Alba admitted that there was no talk on set of 'Bad Blood' being about Katy Perry.

She was then quizzed on the weirdest thing Swift did at the video shoot, but simply explained that the superstar's 'niceness' took her by surprise: "She's so nice... she's like a real... that's what's weird. She's actually very, very nice. I didn't expect that. She's literally the nicest person and kind and fun.. and all of that."  

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