The announcement was made during MTV's one-day reboot of TRL, called Total Ariana Live. With the help of host Sway Calloway, Ariana released the news by unveiling a billboard celebrating her first appearance on the VMA stage.
The rising pop star also leaked what she will sing on the show.
"I'm so excited to perform 'Break Free' at the 2014 VMAs," said Ariana. "I can't wait for my loves to see what we've been working on."