Ariana Grande Performs "Break Free" on America's Got Talent: Watch!

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With all due respect to Iggy Azalea and Nicki Minaj, this is Ariana Grande's year.

The 21-year-old chart-topping songbird is everywhere lately, reaching #1 in 80 countries and performing at almost that many live events it seems.

Her latest conquest? The America’s Got Talent elimination show last night, on which she brought down the house with a rendition of "Break Free" ...

Perhaps it's no surprise that Ariana has teamed up with the aforementioned Iggy and Nicki this year, as they have been three of the biggest names in pop.

Sunday evening at the VMAs, Grande, Minaj and Jessie J performed together on stage, then dropped the official "Bang Bang" music video hours later.

She previously scored a massive hit with "Problem," featuring Azalea, and now is torching the charts again with her latest single, “Break Free.”

Ariana Grande is dating Big Sean as well. It's a busy year for the youngster!

The entire crowd watching her AGT performance last night was loving it, as were judges Heidi Klum, Howie Mandel, Howard Stern, Mel B and host Nick Cannon.

Which is good for Nick. Guy could use a little bit of cheering up lately.

Grande donned her signature hairstyle and cat ears, shimmery mini-dress and thigh high boots, giving her a distinctly sexy, yet understated look.

Click through lots more photos of this superstar int he making below:

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