Miley Cyrus let her emotions get the best of her again.
Life & Style has learned that the 21-year-old songstress broke down on Dec. 6 backstage at KIIS FM Jingle Ball.
"After 'Wrecking Ball,' Miley was backstage crying," an eyewitness tells the new issue of Life & Style, on newsstands now. "There was mascara streaming down her face."
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This isn’t the first time she's bawled after singing the hit song inspired by her ex-fiancé, Liam Hemsworth. On Sept. 21, at the iHeartRadio Music Festival in Las Vegas, Miley performed the song for the first time since breaking up with The Hunger Games: Catching Fire star and broke down in tears onstage.
For more, pick up this week’s issue of Life & Style, on newsstands now.