Los Angeles, California - Megan Fox has sparked break-up rumors with Machine Gun Kelly after deleting all of her Instagram posts with her fiancé.

Just before Valentine's Day, Megan Fox set the rumor mill a'churning after deleting all trace of Machine Gun Kelly from her Instagram feed, which is not usually a good sign for a couple happily in love.

On top of that, the 36-year-old shared a cryptic post of herself donning a revealing black top and matching cut-out pants. Underneath the pics, Fox wrote, "You can taste the dishonesty/ it’s all over your breath." She also includes a video which appears to show her burning a letter in a bonfire.

Fans are speculating the post may suggest that MGK either lied or cheated on Fox and that the two are no longer an item.

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In January, Fox sparked rumors that her relationship with the Bloody Valentine singer might be on the rocks when she advertised for a girlfriend on Instagram. The rapper set fans' minds at rest when he commented, "I don’t think you have the filing capacity for this request."

Further hints that all is not well in paradise came earlier this month when the couple failed to appear together on the red carpet at the 2023 Grammy Awards, where Fox was also spotted without her engagement ring.

If the latest rumors are true, the break-up would come just over a year after MGK proposed to Fox on the front steps of their home. Since they went public with their relationship in 2020, the couple has developed quite a reputation for the unique way they express their feelings for one another, which has not come without controversy.

Is the Transformers star's mysterious new IG post another PR stunt from the couple, or is this truly the end of Fox and MGK's romance?