Ariana Grande rocked the Wednesday, Aug. 27, episode of 'America's Got Talent' with a killer performance of her new single 'Break Free.'

Grande was introduced by 'America's Got Talent' host where she performed 'Break Free' to a crowd of screaming fans at Radio City Music Hall in New York City. Wearing her cat ears, sparkly dress and dark boots, Grande kept with the outer space theme from the music video as she sang her heart out for the audiences and 'America's Got Talent' judges, including Howard Stern, Heidi Klum, Mel B and Howie Mandel.

'Break Free' has already gone as high as No. 4 on the Billboard Hot 100 and sold over 160,000 downloads during its first week. The song was produced by Zedd and written by Zedd, Max Martin and Savan Kotecha.

Click on the video above to watch Grande's stellar performance.