Miley Cyrus was crying when performed “Wrecking Ball” in Las Vegas

Miley Cyrus brings a twerking on stage in Las Vegas while performing 'Wrecking Ball” On Saturday, Sep 21, 2013 at iHeartRadio Afternoon Concert. 

She was just crying, why?

Courtesy: http://music.yahoo.com. Photo Credit: Denise Truscello/Getty Images

Miley Cyrus and Liam Hemsworth have barely been seen together in the last few months

Courtesy: www.tmz.com

Photo credit: Getty Images