The elaborate space-age promo to single E.T. sees the dark colour dominate.
Perhaps the chart-topper has a taste for the shade - after voicing a character in the forthcoming Smurfs movie.
She plays Smurfette in the animated adventure.
In shots from the elaborate clip that accompanies her new single the singer is seen gazing into the distance and then screaming, while wearing an elaborate headdress.
Further stills show her in a red painted mask and braids, and dressed up as a warrior with long hair extensions and war paint.
The promo ends with Katy's character morphing into a Narnia-style animal as she hooks up with a naked man.
The edgy images are a far cry from the fluffy and brightly coloured frocks and candy canes that are the signatures of her live shows.
Hip-hop nob KANYE WEST features on the track, which she has been performing at UK gigs over the past week.
Katy released a teaser clip of the video yesterday, writing on Twitter: "EXTRATRESSTRIALS ARE COMING."
Shame they can't take Kanye with them when they head back into deep space and a galaxy far, far, away.