04/10/2014 09:03 EDT | Updated 04/10/2014 10:59 EDT

Katy Perry Reveals Lots Of Thigh In Sexy Instagram Photo

Forget Kim Kardashian- Katy Perry is the new Queen of Instagram!

The "Dark Horse" singer took to the social photo-sharing site on Tuesday and posted a sexy pic of herself showing off a ton of thigh.

In the pic, John Mayer's ex sports a blue-and-gold sequin gown with a slit up to there and slinky halter straps.

As she leans against a wall, the 29-year-old shoots the camera a sexy gaze and shows off new "slime green hair" which she debuted on Monday.

"Just like a casual Tuesday lewk," the "E.T." songstress captioned the pic. (Funny, cause our casual Tuesday look usually involves jeans, a t-shirt and flats.)

But the star is not known for dressing modestly; this week, the brunette-green beauty attended a press event in L.A. sporting a floral ensemble with a cutout at the tummy.

Though she's now flying solo, Katy is reportedly "doing really good," since her romance with Mayer ended about a month and a half ago.

She's looking great!

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