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What does Hailey think about this?

Outspoken singer and actress Selena Gomez, whose other projects include directing a documentary about undocumented immigrants, has dropped a new song “Lose You To Love Me” – and she’s not hiding the fact that it’s about her ex, Justin Bieber.

It apparently didn’t go over well with Bieber’s new wife, Hailey Bieber. After Selena posted the song to her Instagram story, Hailey uploaded a song to her own story–one titled “I’ll Kill You.”

Fans swarmed Hailey’s Instagram to speculate the story was aimed at Selena, but Hailey denied it completely. “Please stop with this nonsense… there is no ‘response,'” Hailey wrote.

An insider who knows the Biebers backed Hailey up, saying the post has nothing to do with Selena.

“So many people were hitting Hailey up about Selena’s new song, asking her if she had heard it and Hailey was basically saying ‘No, I haven’t because I’m listening to this at the moment, not that,’” said the insider. “Hailey has a lot of love for Justin and she knows how much of a role Selena played in Justin’s life. She could never disrespect his past like that. This is nothing.”

On her Twitter account, Selena Gomez thanked her fans for their support through her ups and downs, including the breakup with Bieber and a battle with lupus.