Selena Gomez and Miley Cyrus' fight is brewing with the "Wrecking Ball" singer performing her track "FU" while holding a cardboard cut-out of "Spring Breakers" star during her Bangerz tour. But Justin Bieber's ex seems to be unfazed by all the drama.

According to New York Daily News, what happened during the Bangerz concert was "as close to a duet as we're ever likely to see between Miley Cyrus and Selena Gomez" as Liam Hemsworth's former flame waved the image of her fellow Disney alum around the stage.

Miley Cyrus then threw the cardboard cutout to the crowd.

However, the publication said that there's really nothing into the rumored Selena Gomez and Miley Cyrus fight, since the incident wasn't premeditated as the singer can "clearly be seen plucking it from an audience member near the front row."

Stephanie Marcus of HuffingtonPost agrees.

"This is apparently being heralded as a 'diss,' but it should be noted that it doesn't seem like this was something Cyrus had orchestrated," she wrote. "Neither Cyrus nor Gomez has yet to comment on the drama, but we're betting Cyrus will chime in any day now."

Meanwhile, the rumored Selena Gomez and Miley Cyrus fight didn't seem to faze Justin Bieber's ex because she already knew that the latter will do anything to get attention.

In a report by HollywoodLife, citing a source, Selena Gomez allegedly knew that "Miley will do anything for attention even if it means dissing other people."

The source added: "Selena would never do what Miley did and doesn't really have any respect for her in the first place. She thinks Miley's number one priority in life is getting attention and she actually feels sorry for her!"

On June 10, Selena Gomez stepped out of the Nine Zero One salon looking as sexy as ever with her cropped top and appears to have been unaffected by the Miley Cyrus diss.