Rebecca Black leaves 'Friday' behind with new single 'The Great Divide'

Rebecca Black was only 13 years old when "Friday" became a YouTube sensation ... for all the wrong reasons. 
The bullying afterwards became so bad that Black was forced to quit middle school in 2011. 
Now 19, the singer has returned with a new single, "The Great Divide." In one version of the music video, she delivers a teary message to fans.
"I just wanted to prove everyone wrong .... but now that it's here I have that within myself and I don't need that anymore," she says. 
"I