Selena Gomez Justin Bieber Break Up Causes Frustration? ‘Slow Down’ Singer Curses On Stage, Storms Off

Selena Gomez experienced audio and microphone malfunctions during KISS-FM's Jingle Ball concert in Los Angeles and dropped the f-word, according to USA Today, leaving many wondering if the incident may have been caused by her frustration with Justin Bieber.

"Sorry, the sound isn't working!" Gomez told the crowd.

"Are you guys having a good night? I promise, a lot cooler people are gonna come out tonight. Is it okay if I perform two more songs and you guys can get to it?"

Selena Gomez recently revealed that Justin Bieber was offered a $3 million diamond by a foreign emperor to give to his girlfriend when they were still dating, PerezHilton.com reports, leaving many wondering if it may had led to their break-up.

Although Selena Gomez mentioned that she denied thegift, it remains unknown what Justin Bieber's response was.

Selena Gomez and Justin Bieber's break up may have sparked a cat fight - Cailin Russo, the 19-year-old who was spotted kissing the teen heartthrob in his "All That Matters" video, is claiming the "Slow Down" singer dissed her in an Instagram post, the New York Daily News reports.

The 21-year-old singer posted a picture on Instsgram with the caption "I thought he only liked the Latina category. Smh... #nomakeup #hatewhengirlssaythat."