Miley Cyrus is single now, but a recent string of sexy pics on Instagram—not to mention her sensual new single she unveiled today— has many wondering if she's trying to get Liam back in the most passive-aggresive way possible.

Miley Cyrus premiered her new song "We Can't Stop" on the Ryan Seacrest show early Monday morning, but she's also been doing some racy shots on her Instagram page to go along with her new "mature" sound.

First, around 18 hours ago, Miley posted a shot of her working out in form-fitting ensemble on top of a treadmill, with the hashtag, #wecantstop adjoining the picture.

The former Disney star of Hannah Montana appears all grown up with a more mature hairdo, a more mature sound to her songs, and it appears a racier version on Instagram.

But this was just the beginning, and many can't help but wonder if it's got anything to do with the reports of her split from longtime boyfriend and (possible?) former-fiancé Liam Hemsworth.

Because her next pic, while speciously to promote the "We Can't Stop" single also features another revealing outfit by Cyrus.

The cleavage on this one stems from the v-nect cut that goes all the way to her bellybutton and beyond in a swimsuit that would pull all the sponsers if she still had her old Disney show.

This is a part of growing up, and Miley is 20-years-old now, and will soon be able to drink alcohol legally, but Miley has to know that Liam is checking out these pics, right?

We get our answer with the next few instagram photos. This one came yesterday, with the caption reading: "“MT & Doll <3 #longasmuahbitchesloveme #dollitupdollitup #thatshowwedollout”

Followed shortley thereafter by another cleavage shot, withthe caption simply "MT & DOLL #wecantstop"

As The Hollywood Life pointed out today from a confidential source close to Cyrus, she's trying to get Liam back. Said the source:

"Miley is in denial — she still thinks that Liam is going to marry her, even though things have been SO up and down. She really doesn’t want this to be over. It’s really heartbreaking for everyone that loves her because Liam has been pretty awful. He gives her totally mixed signals! One day he’s telling her it’s over and the next night they’re sleeping together — he’s putting her through hell.”

She still found time to travel to Silicone Valley after the unveiling of her song. Here she is snapping yet another sexy instagram pic at Facebook headquarters, complete with soft sun-swept lighting, when all the eye wanders towards is her derriére.

Elsewhere Juicy J and Demi Lovato couldn't get enough of Cyrus' single:

@mikewillmadeit congrats mane you did it again! #wecantstop

— juicy j (@therealjuicyj) June 3, 2013

#wecan'tstop I WANNA HEAR IT NOWWW @mileycyrus

— demetria lovato (@ddlovato) June 3, 2013

Listen to Miley's new single here, and we hope Liam knows what he's missing. If not, he just has to peek at Miley's Instagram account. We know her fans are, and some are wondering if she's going too far.

But she probably just believes "She can't stop."