Selena Gomez was not in the Christmas spirit towards the end of her performance at KIIS FM's 2013 Jingle Ball this past Friday (Dec 6th).

The 21 year-old, who just finished one of her hit singles at the concert in LA's Staples Center, openly dropped the f-bomb in frustration due to technical difficulties.

Gomez was so annoyed with the sound issues she left the stage before her set was finished.

"Sorry, the sound isn't working!" Selena was heard yelled to the crowd, according to Us Weekly.

"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?"

However, the issues didn't get resolved and Justin Bieber's ex was getting more distressed by this which forced her to address the crowd once again.

"I have to thank you guys so much for allowing me to be able to perform the music that I love," the 'Spring Breakers' actress said.

"And I have to say that before you guys go on to the people that you care about, I really appreciate you supporting everything that I do. So this next song is the first song I had hit No. 1, and it's called 'Come & Get It.'"

After Gomez finished performing her hit track she left the stage despite having two more songs to perform.

An eye-witness told E!News, "She for sure said 'what the f--k,'" adding, "you could hear it crystal clear."

Selena Gomez
Selena Gomez was not happy with the sound difficulties