According to Hollywood Life, the racy performer went back to her old skin-baring days with the image showing her behind in the air.

The 26-year-old songbird was seen on all fours, wearing a ripped t-shirt, stockings and high heels. She captioned the photo, "Butt."

It looks like KeSha took a page from Rihanna and Miley Cyrus' book, and intentionally had a wardrobe malfunction. She even posed in a super-risque way, flaunting her butt for everyone to see.

The photos suggest either the "We R Who We R" singer was filming a sexy new music video or she likes to strip in her spare time, HL reported.

The singer posed in just a bra covered with glitter in one photo. This photo was just as shocking and jaw-dropping as another image, where the rainbow-colored performer spread her legs in a pair of booty shorts.

And in another photo, the singer was laying on her stomach and showing off her rear end again.

Ke$ha is known for pushing the envelope. The singer was under fire for drinking her own urine on her MTV reality TV show, "Ke$ha: My Crazy Beautiful Life," in May. For our story on the singer drinking her own urine, click HERE.

It seems that pop singers such as Ke$ha are "trying to prove they are in complete control of who they are, but the message may be getting lost in the G-strings," reported HL's Andrew Gruttadaro.

Think Ke$ha went too far or not with the new Instagram photos? Let us know in the comments section below!