Singer and former Disney star, Selena Gomez was not happy during her performance at Jingle Ball 2013.

On Friday, December 6, the 21 year old singer performed at the Staples Center Stage in Los Angeles at KIIS FM's holiday show where she was faced with sound problems. Her microphone and audio were not working properly, so she let out a F bomb and stormed off the show.

A concert-goer told E! News that, "She for sure said, 'what the fu*k.'

The witness also says, "she was messing around with her ear piece from the first song, so you knew something wasn't right."

Gomez let the audience know about her frustrations by saying, "Sorry the sound isn't working! 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?"

The singer was wearing red strapless bodysuit covered in lace and a black wig. She had just finished singing one of her hit songs when she said the f word.

Many of the concert goers were underage children. At this time, there has been no comment from Selena Gomez or her team.

You can watch the video of Selena's choice words below:

Image:Wikimedia