Selena Gomez Dropped The F-Bomb When Her Lip-Synching Went Wrong At Jingle Ball! Hear It HERE!!!

Say it ain’t so!
Selena Gomez got to perform at KIIS FM’s Jingle Ball on Friday night, but it turned out to be a nightmare for the young singer!
Eyewitnesses said that Justin Bieber’s ex was lip-synching when there were sound problems.
Then Selena did the unthinkable and said into a live mic, “What the f*ck!” and ran off stage.
GASP!
But don’t worry, she came back and apologized to her fans for the sound problem, then did a few more songs.
To hear the very NSFW moment, click ‘PLAY’ (below)!

[Image via WENN.]